US1312485A

US1312485A - Fbitz g

Info

Publication number: US1312485A
Authority: US
Publication date: 1919-08-05
Anticipated expiration: 1936-08-05

Description

A. KRAUTH.

MUSIC STAND.

APPLICATION FILED Aue.23, 1917.

Patented Aug. 5, 1919.

Lslms I am'uewkoz wi/imwms STATES PATE l FFTCE.

ALBERT KRAUTH, OF HAMILTON, OHIO; FRITZ G. DIESBACH ADMINISTRATOR F SAID ALBERT KRAUTH, DECEASED.

, IlIUSIC-STAND.

Specification of Letters Patent.

. Patented Aug. 5, 1919.

: 5. Appiication'flled iiu ust 2a, 1917. Serial No. 187,855.

To all whom z't-may concern:

Be it known that'LALnEnr Knsu'rma citizen of the United states," and' resi"d,in at Hamilton, in the county of Butler and tate of Ohio, have invented new and useful Improvement's. in Music-Stands, of'which the following' specification is a full disclosure;

- usage where longitudinal adjustment is re-,

' firmly hold the telescopic justed position; and yet yielding under 'exprovide tension My invention relates to :1. Ion 'tudinally adjustable support member of tel bular'strujcture adapted to be used for sup porting a music rack, or to other similar quired.

a simple,-cheap and efiicie'nt structure,- with tension means automatically operating to members in adtra press'iireto enable the telescopic action '0 the members.

.0116 o'f-the objects means which will automatically equalize tension atv opposite means swivel-supported in a manner to prevent any binding due ffto inequality ofpressure or irregularityof position. v 'Y Other features and objects of the inveni tion are readily comprehended from the following description of the accompanying drawings and in thedrawings like characters of reference denote corresponding parts throughout the severalviews of which:

Figure 1 is a plan view of the end portion of two telescoping tube sections, detached, with the endof the insert tube section provided with my improved tension orfunction means.

tube sections telescopically engaged.

Fig. 3 is an end elevation of the insert tube section. Fig. 4 1s a slde elevation of the same. Fig. 5 is an elevation of the end of the insert tube section modified and providing two fied form of tension devices.

F'ig. 8 is a sectional view of the end of a tube with another modified form of tension devices.

The inner tube member 1 telescopically escopic tugreater than t j pressible into the tube diameter. is to provide tension tube and sides of the tube; and to .ing member, enablin easily inserted into t e in Fig. 2, that is to say,

Figi'7 is a partly sectional view of a'modiabove the other,

enters the outer tube member 2, the fit being snug, and yet enabling free telescopic action; It lssnot essential that both members he hollow,or tubular, or that the cross section be circular, though the invention has mostadvantageous application to the telescoping tube species. I i

The tension member is carried in theend of the inner tube, and the tube endmay be cut out at each side full length of the tension member, as at 3, Fig. 4, orthe cut out portions may be along the lower or limb por- I I tions ofthe tension members, as shown at 4, The object of the inventionis to provide F1 6. i The tension member 5 consists of resilient wire looped at an form a swivel eye 6, and the diverging spring limbs 7, normally spreading apart a distance 'diametrical pivot 8 is secured in the extending transversely'to the

orifice

3 or 4, the limbs 7 extending outwardly through these diametrically disposed orifices or slots in-the oppositewalls of the tube.

' In this simplest form, (Fig. 1), the tubes are ready to be telescoped, and the tension limbs 7 point-away from the inner tube to be outer tube as, shown the limbs diverging from the eye in the direction in which the telescope is extensible.

' The limbs 7 or portions of them extend "outwardly through these orifices or slots 3, and frictlonally engage the inner surface of the outer tube to impose friction at o 1 posite diametrical 1portions of this outer tube. Fig. 2 is a view partly in section of the two whereby the tension is equalized and binding The loop enab es the swivel mounting this enables the use of can loosely fit on the 1s prevented. Also, resilient wire which pivot and requires no close fitting or machinto be most easily telescoped and adjusted,

and yet rovides a sufficiently forcible friction loci? to adapt the structure to light usage such as sustaining a music rack at the desired height without slipping.

If desired, two such tension members may be provided in the end of the near tube, one and arranged preferably in transverse planes as shown in Fig. 5, in

e tube diameter, but com the outer telescopintermediate portion to which event, of course,

being out of the tube.

It is easy to telescope the tubes because of the swivel tension support and because of divergence.

the convergence toward the swivel in the direction of insertion.

Telescoping action is slightly easier than when the movement is-in the direction of This telescoping device is cheap, strong, easily made, and reliable. The equalization of tension renders the operation smooth, and yet positive at all times, and there are no parts to get out of adjustment, or weak elements likely to be easily broken.

In the modification, Fig. 8, the tube 1 is' slitted at opposite sides to forms. pair of tongues 1212, retaining the metal which is cut away in forming the notches in the tube of the several other forms shown. Each tongue 12 is bent outwardly. A tension member 5 is interposed between the tongues and within the 7 respectively fixed to ton ues.

aving described my invention, 1 claim: 1. A device of the class described comprising longitudinally adjustable telescopin members, a tension device having one en swivel-connected to the inner telescoping the free ends of the member and having diverging compressible limbs projecting from opposite sides of the 'having compressible tube having its spring limbs.

inner telescoping member and frictionally engaging interior surfaces of the outer telescoping member.

2. A device of the class described comprising an outer and inner telescopin tube, the inner tube having diametrical s ots and a transverse pivot, a resilient wire intermediately looped to form an eye swiveled on said pivot and providing diverging compressible limbs, portions of which project through said slots for frictionally engaging portions of the outer tube.

3. A device of the class described comprising telescoping tubes, the inner tube being formed with diametrical slots and a transverse pivot, a tension member on the pivot limbs normally projecting through said slots.

4. A device of the class described comprising telescoping tubes, the inner tube being. formed with diametrical slots and a tension member pivoted within the inner tube and having compressible portions projecting through said slots. 5. A device of the class described comprising a pair of tubes telescopically united, and

a piece ofwire bent to ,form a coil and two oppositely diverging limbs compressible toward each other, pivotally secured at the coil within the inner tube of the pair with said limbs engaged through openings in said inner tube and frictionally bearing against the outer tube.

In witness whereof, I hereunto subscribe my name, as attested by the two subscribing witnesses.

. ALBERT KRAUTH.

Witnesses: n

no. W. MCGILLIARD, LLA CLENDENIN.