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US1789589A - Trombone - Google Patents

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Publication number
US1789589A
US1789589A US38369129A US1789589A US 1789589 A US1789589 A US 1789589A US 38369129 A US38369129 A US 38369129A US 1789589 A US1789589 A US 1789589A
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US
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Grant
Patent type
Prior art keywords
slide
members
inner
trombone
outer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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Inventor
Alfred J Johnson
Original Assignee
York Band Instr Company
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Publication date
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    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10DSTRINGED MUSICAL INSTRUMENTS; WIND MUSICAL INSTRUMENTS; ACCORDIONS OR CONCERTINAS; PERCUSSION MUSICAL INSTRUMENTS; MUSICAL INSTRUMENTS NOT OTHERWISE PROVIDED FOR
    • G10D7/00General design of wind musical instruments
    • G10D7/10General design of wind musical instruments of the type with a cupped mouthpiece, e.g. cornets, orchestral trumpet, trombone

Description

Jan. 20, 1931. A. J. JOHNSON TROMBONE Filed Aug. 5. 1929 A TTORNE Y S Patented Jan. 20, 1931' UNITED STATES PATENT OFFICE ALFRED J. JOHNSON, OF GRAND RAPIDS, MICHIGAN, ASSIGNOR TO YORK BAND IN- STRUMENT COMPANY, OF GRAND RAPIDS, MICHIGAN TROMBONE Application filed August 5, 1929. Serial No. 888,691.

This invention relates to improvements in slide trombones and it relates particularly to the improvement of the slide.

The objects of the invention are:

First, to provide such a slide which will be very easy in operation and in which binding, due to slight defects or damage to the outer tube, are avoided.

Second, to provide an improved arrangement of the slide shoe, carrying the same by the outer member of the slide as distinguished from the inner.

Objects pertaining to details will appear from the description to follow. A preferred embodiment of my invention is illustrated in the accompanying drawing, in which:

Fig. l is a side elevation view of a trombone embodying the features of my invention.

Fig. 2 is an enlarged detail elevation view of the slide structure.

The parts will be identified by their numerals of reference which are the same in both the views.

1, l are the frame members of the trombone connected by the cross handle 2. 3,3 are the inner slideway members which are plain, straight tube members coupled by the cross loop 41. 5 are the shoes which are Way tubes open at their inner ends secured to the frame thereof, telescope tube members loosely surrounding the same in spaced relation connected by a loop at their outer ends, slideway shoes having inner spiral lubricant grooves and disposed at the inner ends of said outer tube members, and outer sleeves con- 7 ALFRED J. JOHNSON.

coupled to the telescope tube members by the sleeves 6, 6. The shoes 5 are each provided with an inner spiral lubricant groove 51. The sleeves 6, 6 are connected by the cross handle 7 by which the entire slide is manipulated in playing the instrument.

The tube members 4 have a bore of about four thousandths of an inch larger than the slideway members 3, and consequently if they become slightly dented or otherwise injured or are slightly irregular in form, they do not bind on the slideway and manipulation is free and easy as a consequence. A sli ht blow on the outer member 4 does not inter ere with the free operation of the structure.

I desire to claim this structure in its specific form.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

In a slide trombone, the combination with the instrument frame of a pair of inner slide-

US1789589A 1929-08-05 1929-08-05 Trombone Expired - Lifetime US1789589A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US1789589A US1789589A (en) 1929-08-05 1929-08-05 Trombone

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1789589A US1789589A (en) 1929-08-05 1929-08-05 Trombone

Publications (1)

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US1789589A true US1789589A (en) 1931-01-20

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US1789589A Expired - Lifetime US1789589A (en) 1929-08-05 1929-08-05 Trombone

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