Trumpet, B-flat, A, low pitch
Maker
Ernst Albert Couturier
Date1921 ca.
Place MadeLa Porte, Indiana, United States, North America
ModelConical Bore
Serial No.6834
SignedEngraved on bell: CONICAL / BORE / PAT’D. / E. A. Couturier Ltd. / LA PORTE / INDMarkingsStamped on second valve casing: PAT. SEPT. 23, 13 / OTHER PATS. PENDING / SEP. 24, 18. / S / 6834
Stamped on valve stems: 6834
Stamped on rotary valve quick-change casing: S / 448
Stamped on valve casings, spring stems and top valve caps, respectively: 1, 2, 3
DescriptionSilver-plated brass, mother-of-pearl finger buttons, single loop, main tuning slide (first bow), rotary-valve quick-change to A (before valve segment), fixed leadpipe, three Périnet valves (1, ½, 1½), no valve slides, top-sprung, spring inside hollow stem, alignment by two unequal lugs on spring anchor plate, pistons nickel-plated brass, single water keys (first bow, third-valve loop), windway 3-2-1.
Cornetist Ernst Albert Couturier received several patents for conical bore brasswind instruments. The patent stamps on this cornet refer to US Patent no. 1,073,592 from September 23, 1913, for conical bore, and US Patent no. 52,473 from September 24, 1918, for an ornamental trumpet design. This instrument with narrow cornet-size mouthpiece receiver, otherwise, follows the trumpet design from 1918.
The valves have no slides in order to avoid interrupting the conical bore. However, the external diameter of the valve loops suggests some cylindrical tuning.
DimensionsHeight: 493 mm
Tube length: 1353 mm (B-flat), 1434 mm (A)
Bore diameter (initial, minimum, tuning slide): 9.9 mm, 8.7 mm, 10.2– 10.5 mm
External diameter valve loops: 11.8–12.2 mm (3rd valve), 12.2 mm (2nd valve), 12.5–12.6 mm (1st valve)
Bell diameter: 117 mm
ProvenancePurchased in 1983 from Jack Silver, Washington, D. C.
Credit LineJoe R. and Joella F. Utley Collection, 1999
Object number06785
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