US1317065A - baker - Google Patents

Description

C. H. BAKER.

CORNET.

APPLICATION FILED NOV- 2!,19l8.

1 ,317,065, Patented Sept. 23, 1919.

2 SHEETS-SHEET I.

C. H. BAKER.

CORNET.

APPLICATlON FILED NOV- 2| I918.

Patented Sept. 23, 1919.

2 SHEETS-SHEET 2- UNITED STATES PATENT OFFICE.

omnnns 1;. Be g an, pr NEW YORK, N. Y.

CORNET.

Specification of Letters Patent. Patented Sept. 23, 1919.

Refiling of application Serial No. 489,292, filed April 12, 1909. This application filed November 21, 1918.

Serial No.

To all whom it may concern:

Be it known that I, CHARLES H. BAKER, citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Cornets, of which the following is a specification, reference being had therein to the accompanying drawing.

This invention relates to certain improvements in cornets, and has for its primary object the provision of a comet in which the range or compass of the instrument is increased, more accuracy in the notes produced ismadepossible, and in which the fingering is simplified, To this end the 1nvention includes the construction and arrangement of parts to be presently described and pointed out in the claims.

In the ordinary or three piston cornet 1n the key of C, it will be appreciated by those skilled in the art, that the lowest note .provided for is F sharp, and for the player to produce notes below this, he must be skilled and rely rather upon the trick of the lips than upon any system of piping or tubing.

By the present invention the range or compass of the instrument is so increased that the ordinary player will have no difficulty in producing notes considerably below F sharp, and this as readily as the ordinary notes of the staif are produced.

In the cornet of usual construction employing three pistons the tone length of the tubing or crooks of the three pistons is as follows: the tube or crook of the first p1ston one tone length, the crook of the second piston one half or a semi tone length, and the crook of the third piston a tone and a half length, making a total'of three tones. As distinguished from this I provlde four pistons with a total tone length of five and one half tones.

For a clear understanding of the invention reference is directed to the accompanying drawings forming a part hereof and wherein a preferred embodiment of the invention is disclosed for the purpose of illustration.

In the drawings:

Figure l is a side elevation of the lnstrument with my improvements applied,

Fig. 2 is a. diagrammaticyiew of the four piston cylinders, and cert-aln of the tubular connections or air passages associated there.- with, all of the pistons being down.

Referring now more particularly to the drawings wherein like reference characters designate corresponding parts throughout the several views '1, 2 and 3 indicate respectively the cylinders or casings for the first, second and third pistons of the cornet, the said pistons having the usual stem projections and keys 1*, f2, and 3 respectively. The mouth piece 5 connects with an air pipe or tube 6 curved as shown, and commun cating at 7 with the third piston cylinder 3. The cylinder 3 connects by tubing 8 with the second cylinder 2 which latter has theusual one half tone crook 9 and the second piston cylinder 2 connects with the first cylinder l by the tubing 10. The first-piston cylinder has the usual one tone crook 11, and leading from the first piston cylinder 1 is the usual curved tubing 12 terminating in the ordinary bell 13.

The parts just described may all be, and

preferably are, of the usual construction and this brings us to the improvements embodied in the present invention.

A fourth piston cylinder 4 is provided, the same being arranged at the side of the cylinder 3 so that the projecting stem and key 4 of the piston may be readily operated by a finger of the right hand of the operator the same as the adjacent keys. The

crook 14 of the third piston cylinder 3, in-

stead of being of the ordinary length, i. 6., one and one half tones is lengthened to two tones and connects with the fourth piston cylinder at 14 A tube 15 connects at one end with the fourth cylinder at 15 and at its opposite end with the third piston cylinder at 15", and said fourth'piston cylinder has a crook 16 having a length of two tones.

The fourth piston is only effective through the third piston cylinder, and the action is as follows:

When the third piston is in normal or elevated position, the tube 15 extending between the third and fourth piston cylinders is closed. When, however, the third piston is depressed communication is established with the tube 15 into the fourth piston cylinder and directly through the crook 14 of the third piston cylinder. In other words by depressing the third piston the action is similar to the three piston cornet in that the air will have a continuous passage way through the third piston crook. But, as before stated, said crook of the third piston is two tones length instead of one tone and a half as is the case with the ordinary three piston cornet. The mere depression of the third piston will have no effect on the tubing of the fourth piston. When, however, the fourth piston is lowered, it being assumed that the third piston is also lowered, the passage of air will be from the third piston cylinder through the tube 15 as before into the fourth cylinder and into the crook of the fourth piston cylinder, around the same back into the fourth cylinder thence out into the crook 1d and back into the third piston cylinder finally finding an outlet through the connecting tubes of the first and second cylinders into the tube 12 and out at the bell 13.

The fourth piston and associated parts, as applied to the three piston cornet, in the manner above described, gives a change of fingering that is much more simple than the system of fingering as applied to the three piston cornet. My improvement enables the performer to descend more than two octaves below C first leger line, perfect chromatic or major scale. The fingering as applied to my instrument may be set forth as follows: starting at C first leger line below the staff treble clef and descending two octaves.

C open. C open (first octave). B second piston. B second piston. A first and second pistons. A iii-1st and second pisons. G second and third pistons. G open. F first, second and third I first piston.

pistons. E third and fourth pistons. E first and second pistons. D first, second, third and D first, second and third fourth pistons. pistons.

piston one tone, the second piston one half tone, the third piston two tones and the fourth piston two tones.

In testimony whereof I hereunto aflix my signature in the presence of two witnesses.

CHAS. H. BAKER. Witnesses:

CHAS. W. STEUART, M. J. DEVINE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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