US423844A

US423844A - weber

Info

Publication number: US423844A
Authority: US
Publication date: 1890-03-18
Anticipated expiration: 1907-03-18

Description

2 Sheets--Sheet 1.

(No M d l. 4. WEBER.

MUSIG DESK, 650. No 423,844. Patented Mar, 18, 1390.

' INVENTOR: WlTNESSESf g .7( C9JWfl 4 By his Attorneys,

N. PEYERS. Phumumogn hu, Wmhinginn. D. c

2 Sheets-Sheet 2.

(No Model'.)

A. WEBER.- MUSIC DESK, 850. No. 423,844. Patented Mar; 18, 1890'.

TNVENTOR:

WITNESSES: (fie/M, Warm "&L m4v By hi5 Attorneys,

WQAW N. PETERS, PhuloLhhugnphnr, Waihingwn, D. C.

UNITED STATES PATENT OFFICE.

ALBERT IVEBER, OF LE LOCLE, SIVITZERLAND.

MUSIC-DESK, C.

SPECIFICATION forming part of Letters Patent No. 423,844, dated March 18, 1890. Application filed June 14, 1889. Serial No. 314,216. (No model.) Patented in Switzerland April 8, 1889, No. 831.

To to whom it may concern:

Be it known that I, ALBERT IVEBER, a citizen of the Swiss Republic, residing at Le Locle, Switzerland, have invented certain new and useful Improvements in Music-Desks, &c., (patented in Switzerland by Patent No. 831, dated April 8,1889,) of which the following is a specification.

This invention relates to desks, stands, easels, or analogous structures, and its object is to provide a structure of this character which is collapsible and can be adjusted either in height, width, or inclination. To this end I construct the stand or desk of bars pivoted together in the manner of a lazy-tongs, and so arranged that when collapsed the entire structure will fold into the form of a compact bundle and when extended the desk can be clamped in any position.

In the accompanying drawings, Figure 1 is a front elevation of a music-stand embodying my invention, the stand being shown in the extended condition. Fig. 2 is aside elevation thereof. Fig. 3 is a horizontal sectionthereof cut on the line a; a: in Fig. 2. Fig. 4 is a fragmentary elevation thereof on a large scale. Fig. 5 is a fragmentary side elevation thereof on a larger scale than Fig. 2. Fig. 6 is a front elevation thereof, showing the stand as partly collapsed. Fig. 7 is afront elevation thereof,

showing the supporting-frame of the stand collapsed and the upper part or desk extended, and Fig. 8 is a front elevation show-- ing the entire stand collapsed and folded up into a compact bundle.

Referring to all the drawings, let'A designate the front leg, B the rear leg, and C the desk proper, of a 1nusic-stand.

The legs A and B are formed of bars pivoted together in the manner of a lazy-tongs. Each bar of the two lazy-tongs A and B is pivoted in its center at Ct to a cross-bar, and at its ends by rivets b b to the ends of the next series of cross-bars in the lazy-tongs. The upper bars of each lazy-tongs A and B are pivoted together and to the lower ends of the top bars 0 c at d d by rivets b b. The

top bars 0 c are pivoted by rivets d d to the top plate L, to the upper edge of which is hinged the desk 0. The lower bars of the lazy-tongs A are connected by rivets h 71. to an angle-iron base-plate D, which is provided with two feet f f. I11 the vertical wall of the base-plate D two horizontal grooves g g are cut, and in these the rivets h h slide. The lower bars of the lazy-tongs B are pivoted at jj, near their ends, to two horizontal bars E E, crossing each other and pivoted together at their center by a rivet i, (see Fig. 3,) and pivoted at their other ends to the ends of two short bars F F, which latter are pivoted at their other ends to the under side of the base-plate D by rivets 7t 75-. The base-plate D is cut away at Z Z in order to make it as light as possible. The foot of the supporting-frame is thus constituted by the feet ffon the base-plate D in front and by the lower ends m m of the bottom bars of the lazy-tongs B at the rear. This foot rests on the ground, a floor, or a table, as desired. By this arrangement of the lower part of the supporting-frame the lazy-tongs A and B, as they are extended or collapsed simultaneously, operate the lazytongs formed by the horizontal brace-bars E E and F F, so that the bottom brace formed by these last named bars is always automatically adapted to the degree of extension of the lazy-tongs A and B by the movement of the latter.

The desk proper is constructed of the supporting-plate M, which is hinged by the hinge G to the top plate L of the supporting-frame, and which supports the lazy-tongs O, which constitutes the table of the desk.

The bars constituting the lazy-tongs O are pivoted together as described with reference to the lazy-tongs A and B, and the lower bars N N are connected by the pivot m to the supportingplate M. The plate M is constructed with two grooved slots 0 0 near its ends, which receive rivets n or carried by the bars N N. long to permit the collapse of the lazy-tongs C, and they also serve as stops to limit the extension thereof. To the lower ends of the bars N N are pivoted two short bars 0 O, which are pivoted at their other ends by rivets p p to the plate P, which constitutes the bottom plate of the lazy-tongs G. On this plate P is hinged a restplate Q, which, when the desk is extended stands in a position perpendicular to the plane of the lazy-tongs C, and serves to retain the music or other article on the desk, and when the desk is collapsed These slots 0 0 are sufiiciently is folded against the plate P. Screw-eyes R R are fastened to the ends of the restplate Q, and into these are screwed the lightholders S S, as best seen in Fig. 1-.

To the outer ends of the upper bars of the lazy-tongs (l are pivoted lateral extensionbars T T, which can be turned out laterally from the lazy-tongs when it is desired to support an unusually large sheet of music, and on the ends of these bars T T are riveted small springs 0' 2', which serve to retain the sheets of music and to preventtheir displacement by the action of the wind.

Bars V and Y are pivoted at their outer ends to the upper bars 0 c of the supportingbase, and extend thence over the plate Ii. These bars cross each other over the plate L and are provided with slots 1' y in their inner ends. The screw-bolt U is fixed to the plate L and projects forward therefrom and through the grooves r 3 in the bars V Y. A bar Z is hinged to the plate )1 forward of the hinge G and extends thence downwardly in front of the plate L and across the bars V and Y. This bar Z is provided with a slotin its lower end which engages the serew bolt U. A thumbscrew X engages the end of the bolt U, and when the screw is tightened it serves to clamp the bars V, Y, and Z tightly against the plate L, and thereby to make the polygon formed by the bars Y c, L c, and V, indicated by the numbers 1, f3, 3, i, and 5, rigid. This clamping mechanism serves to clamp the lazy-tongs of the supporting-base in any desired position, and also serves to clamp the desk proper at the desired inclination. In order to adjust the position of the lazy-tongs constituting the supportingbase, the thumlyscrew X is loosened, and the lazy-tongs can then be extended or collapsed, as desired, and then upon tightening the thumb-screw X the bars V Y will be clamped fast to the plate L, and eonsequently will prevent any movement of the bars 0 c, and thereby will prevent any movement of the lazytongs A and B.

In adjusting the inclination of the desk the thumb-screw X will be loosened, and then the desk can be tilted to the desired extent, which will cause the bar Z, hinged. thereto, to move over the face of the plate L. \Vhen the desk has been moved to the desired inclination, the thumb-screw X will be tightened, and will clamp the bar Z to the plate L and thereby prevent the displacement of the desk. This clamping device is best seen in Figs. l and 5.

The supporting-base can be extended or col lapsed, as desired, independently of the desk proper. In Figs. 1. and 2 it is shown as extended sul'iiciently for use by a person who is standing, and in Fig. 6 is adapted for use by a person who is seated. It may be completely collapsed, as shown in Fig. 7, which position will be most convenient when the structure is to be set on a table and the desk proper is only required. The desk proper can be extended or collapsed, or inclined to any position independently of the sup iiorting-base.

When the structure is to be packed away for transportation. or storage, the supportingbase is entirely collapsed, as also the desk proper, and the rest-plate Q is folded back against the plate P and the structure is folded into a compact bundle, shown in Fig. 8.

I prefer to construct my invention of iron or steel, but it will be seen that it maybe constructed of any other suitable material, and that it may be variously formed or ornamented without departing from the essential features thereof.

I claim as my invention the following defined novel features and improvements in or applicable to desks, stands, easels, or analo' gous structures, substantially as hereinbefore set forth, namely:

1. A supporting-frame consisting of the combination of two supports A B, each being a lazy-tongs, said supports being joined to gether at their upper ends and diverging from their juncture and spread apart at their lower ends when the frame is in position for use.

2. A supporting-frame consisting of two supports A B, each being a lazy-tongs, said supports being joined together at their upper ends and diverging and spread apart at their lower ends, in combination with a collapsible brace, connecting together the lower portions of said lazy-tongs and constructed of bars pivoted together after the manner of a lazytongs.

3. The supporting-frame composed of atop plate L, lazy-tongs supports pivotally connected with said top plate and a desk piv0tally connected with said top plate, in combination with slotted bars pivotally connected to said lazy-tongs supports, and a clampingscrew carried by said top plate and extending through the slots in said slotted bars.

4. The supporting-frame composed of a top plate I, and lazy tongs supports pivotally connected therewith and a desk hinged to said top plate, in combination with a slotted brace-link hinged to said desk, and a clampscrew carried by said top plat-e and extending through the slot in saidbrace-link,whereby the inclination of said desk may be adjusted.

5. The combination, with a supportingframe constructed of bars pivoted together in the manner of a lazy-tongs, of a desk hinged to said f 'ame, a plate L, to which are pivoted the upper bars of said frame, a plate M, hinged to the plate L and serving to support the desk, and slotted bars V Y Z, and ascrewclamp, as U X, for clamping said bars and the plate Ii together, whereby the desk may be fixed in any position and the supporting frame stiffened by tightening said screwclamp.

6. The combination of the supportingframe, consisting of the lazy-tongs A and 1:3, the base-bar ]),to which the ends of the lower terminal bars of the lazy-tongs A are connected by means of sliding pivotal connections, and the interposed brace-frame E F,

consisting of lazy-tongs bars pivoted at one as stops to limit the opening of the lazy-tongs, end to the bars of the lazy-tongs B and cona plate P, connected to the lower side of the nected at the other end to said base-bar D, lazy-tongs, and a rest-plate Q, pivoted to the I 5 whereby the folding or unfolding of the plate P. c

5 frames A and B effect-s automatically a cor- In witness whereof I have hereunto signed responding movement ofthe barsfE F. my name in the presence of two subscribing 7. The combination of the desk 0, constructwitnesses.

ed of bars pivoted together in the manner of a lazy-tongs with a supporting-plate M, to ALBERT VVEBER' IO which said lazy-tongs is pivoted, said plate \Vitnesses:

being formed with slots 0 0, pins n n in the GOTTFRIED WVEIOK,

lazy-tongs engaging these slots and serving 0. J EANNERET CAMILLE.