US897376A - Pedal mechanism. - Google Patents

Description

PATENTED SEPT. l, 1908.

G. B. KELLY. PEDAL MLGHANISM.

APPLICATION FILED FEB.11,190B.

GEORGE B. KELLY, OF JAMAICA PLAIN, MASSACHUSETTS.

PEDAL MECHANISM.

Specicaton of Letters Patent.

Patented Sept. 1, 1908.

Application filed February 11, 1908. Serial No. 415,289.

To all whom it may concern.'

Be it known that I, GEORGE B. KELLY, a citizen of the United States, and a resident of Jamaica Plain, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Pedal Mechanisms, of which the following is a specification.

This invention relates to a pedal mechanism and particularly to a pedal mechanism used for operating air pumping bellows such as are provided in pneumatic playing attachments for musical instruments.

The object of my invention is to provide a new and improved pedal mechanism for this purpose, which is simple in construction, effective in use and so constructed as not to produce any noises which would or could interfere with the music produced.

In the accompanying drawings, a side elevation of my improved pedal mechanism is shown in connection with the pumping and storage bellows and the lower part of the casing containing the mechanism.

The pumping bellows 1, of which there are usually two in an instrument, are of conventional construction and provided with springs 2 2, which tend to collapse these bellows. These pumping bellows exhaust the air from the storage bellows 3 also of conventional construction. The pedals 4 are pivotally mounted on a frame 5 pivoted at 6 in the casing 7 of the instrument which frame can be swung within the casing when the pedals are not to be used or can be swung out, as shown, for use of the pedals, this frame being provided at its outer end with a support 8. To the movable board 9 of each pumping bellows 1, an angle piece 10 is secured in such a manner that one arm of the angle piece projects beneath the bottom'edge of the board toward the front of the casing and each angle piece is provided with a lug 11 forming a stop or shoulder. A recess 12 is lformed in the bottom edge of the bottom member of each angle piece 10 in advance of the stop lug 11 and in this recess a wooden cylindrical piece 13 is loosely mounted, this piece being held in place by the inner end of a spring metal bar 14 which is held to the underside of the angle piece 10 by two screws 15 and 16 at opposite sides of the piece 13, the inner end of this spring bar 14 abutting and resting against the lug or shoulder 11. The free'end of each bar rests loosely in a recess or notch 18 formed in a bar 19A on the underside of each pedal, which bar is gradually inclined from the notch downward so as to form an inclined track for the free end vof the spring bar 14 for the purpose of properly guiding the ends of the said bars into the notches 18 when the pedal supporting frame 5 is swung down into position, shown in lull lines. By means of the screws 15 and 16 the inner end of the bar 14 can be so adjusted as to give the bar the proper inclination. and so that the iree end of this bar 14 will rest properly in the notch .18. As a pedal is depressed, the corresponding spring bar 14 is bent slightly and is forced downward and rearward and acting on the ai'iglo piece 10 forces the corresponding movable board 9 of one bellows 1 to the rear, thereby expanding said bellows and exhausting the air from the bellows 3 and as the pressure on the corresponding pedal 4 is released, the expanding spring 2 of said bellows forces the movable board 9 toward the front of the casing and collapses the bellows whereby the air drawn into the bellows is forced out and so on.

It will be observed that there is no hinge joint at the inner end o'l the bar 14 which transmits motion 'from the pedal to the bellows and hence no possibility of producing disturbing noises such as would be produced if an ordinary hinge joint were provided which might be so tight as to squeak or so loose as to produce a rattling1 noise.

As shown the free ends of the bars 14 rest loosely in the notches or recess 18 oi' the pedals. When the instrument is not in use and the pedals are not required, the operator merely swings the frame 5 upward and into the casing into vertical position as indicated in dotted lines and the pedals 4 swing upward into the position shown in dotted lines. When the pedals are required the frame 5 is swung downward and outward and the undersides of the pedals come in contact with the free ends of the bar 14 and slide along the ends of the bars andsuch ends slide up the inclined part 19 on the underside of the pedals until the free ends oi' the bars 14 arrive at the notches 18 into which they snap and the pedals are now ready for use again for pumping air.

I-Iaving described my invention what I claim as new and desire to secure by Letters Patent is 1. The combination with a pedal and a bellows, of a means 'for transmitting motion from the pedal to the bellows and from the tending from the angle piece to the pedal bellows to the pedal, which means consists of bellows, of an angle piece connected with a single and continuous element connected with one of these elements and loosely in oontact with the other, substantially as set forth..

2. The combination with a pedal and a bellows, of a flexible ineaiis for transmitting motion from the pedal to the bellows, and from the bellows to the pedal, which means is mounted. on one of these two elements and loosely in Contact with the other, substantially as set forth.

3. The combination with a pedal and a bellows, of a spring metal bar exteni'lingfroin the bellows to the pedal7 substantially as set forth.

4. The combination with a pedal and. a bellows, of a spring metal bar connected with the movable board of the bellows and eX- tending to the pedal, substantially as set forth.

5. The combination with a pedal and a bellows, of a spring metal bar connected with the movable boaid. of the bellows at one end and having its opposite end rested loosely against the pedal, substantiallwT as set forth.

6. The combination with a pedal having a notch in its under surface, of a bellows anda bar of spring metal having one-end connected with the movable board of the bellows, and the opposite end rested loosely in the notch in the pedal, substantially as set forth.

7. The combination with a pedal and a bellows, of an angle piece secured to the movable board of the bellows at the swinging end of the saine and a spring metal bar ex- 7 substantially set forth.

S. The combination with a pedal and a bellows, of an angle piece attached. to the movable board of the bellows at the swinging end of the same, a lug on saidv angle piece and a spring metal bar held on the angle piece, one end of said bar resting against the lug of the angle piece and the other resting against the underside of the pedal, substantially as set forth.

9. The combination with a pedal and a the movable board of the bellows at the swinging end of the saine, a flexible metal bar held at one end on said. angle piece, the

opposite end of the bar resting against the underside of the bellows and a wood cylinder interposed between the bar and the angle piece, substantially as set forth.

10. The Combination with a pedal andv a bellows, of an angle piece connected with the movable board of the bellows at the swinging end of the same, a flexible metal bar held at one end on said angle piece, the opposite end of the bar resting against the underside of the bellows and a woody cylinder interposed between the bar and the angle piece, an adjusting screw passing through the bar into the angle piece at eaeh side of the cylinder, substantially as set forth.

l1. rfhe combination with a pedal and a bellows, of an angle piece secured to the movable board of the bellows at the swinging end. of the same and provided with a notch, awood cylinder in said notch, a spring metal bar resting against said cylinder, a holding device passed through the bar into the angle piece and confining the roller between the bar and the'angle pieee, said metal bai' resting against the underside of the pedal, substantially as set forth.

12. The combination with a pedal and a bellows, of a raised part on. the underside of the bellows. which raised part is provided with a notch, the edge of this raised part being beveled from said notch toward thc pivoted end of the pedal, a bai' attached to the bellows and having its end rested loosely in the notch on the underside of the pedal, substantially as forth.

Signed at New York city in the county of New York and State of New York this 29th day of January A. D. 1908.

GEORGE B. KELLY.

lVitn esses:

J. E. MEADE, D. C. HiiiNs.

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