US1905109A - Sheet holding rack - Google Patents

Description

April 25, 1933. KRAUTH 1,905,109

SHEET HOLDING RACK Original Filed May 17, 1928 INVENTOR WK ATT;RNEY$ 20 in the rack or holder.

Patented Apr. 25, 1933 PATENT) MARIE wILtiAM mum; or HAIVIIILTON, oiiro, AssIGNoR TOIKRAUTH. &

1 BENNINGHOFEN,-OF HAMILTON, OHIO, A FI -M 1 SHEET normns RAoK Original application filed May 17, 1928, Serial No. 278,596. Divided and this i 1930. Serial This invention relates to music stands and is particularlydirected to a collapsible,

foldable rack fol-supporting sheets or books of music etc.

division of an abandoned application of Marie William Krauth, Serial No. 278,596, filed May 17, 1928, the latter being copend ing at the time this application was filed.

The co-pending application is directed to the features ofa support or tripod for a music stand. The music stand disclosedin the pending case includes the base or support for a post supporting afrack'of the present nature on the upper end of the post.

The rack of this invention'is generally "ap-' plied to this type of music stand; although its application to this type'of supporting means is intended to be included in View of those features of invention residrngentlrely It is, therefore, anobje'ct of this invention to provide a music 'rack of foldable construction which is readily and easily Hoollapsible into compact form. Another object in connection with the foregoing is to provide that the music stand is highly efficient and that its utility and stability are in no way detractedfrom by the fabrication thereof permitting compact folding.

Another object of this invention is to provide an adjustable mountingfor the sheet holding rack wherein the same is pivotally mounted to its. attaching stand or post and v in which the swinging or adjustment movement of the rack is limited and the rack is positively maintained against accidental displacement at any selected inclined position within its range of adjustment without the necessity of drawing up a clamp for each setting.

Other objects and certain advantages will be more fully apparent from the description of the accompanying drawing in which:

Figure 1 is. a front view of a music stand incorporating the improved sheet holding rack.

Figure 2 is a sectional view taken on line 22, Figure 1, detailing the adjustable mounting of the rack.

Figure 3 is a front view of the rackshow- The present application is aapplication filed. August 23, No. 477,273. 0

ing the same in partially collapsed or folded position. 7 j V fFigure 4 is a rear view of the adjustable connection between the rack and its attaching post. j .1 j

Figure 5fis a sectional'view taken on line 55, Figure 1, "detailing the means for V aligning the sections of the diagonal straps} Referring to the drawing, the rack 10- is shown, mounted upon an extensible post, 11166 mounted on atripod'12. The post is made" up of a plurality of tubular sectionsrlg which decrease in-diameter from the baseto the upper section for the purposeofsuccessively completely 'telescoping into' each other into a lengthrepresented by the length of one section. The construction of the tripod and POStfii'G of no importance in the pres ent case except asan instanceof a: support for the rack.' 1 f. The music holding rack 10 includes main central strap 14, from-the bottom of which strap, and in respective directions, angle iron rests 15 extend outwardly beingpivoted to the central strap. The 'corjre' sponding flanges 16 of these angle iron pieces. constitute ledges for. supporting the sheets. "The back rest for filling out the rack and maintaining the ledges or sheet rests in sheet supporting V position comprises a multiplicity of strap iron lengths :of relatively small dimension. These strap-lengths are suitably pivoted to, permit a complete collapsing of the .rack when the rests are folded up along the central strap. 7 8'5 Describing the rack inset up. position,a pair of top straps? 17' havetheir'adjacent] ends pivotally attached to the upper end of I each formed of along upper section 19 and a. short lowersection 20 pivotally linked together. The rests and'the straps in this arrangement form a rectangular :back for the rack- Sectional diagonal brace straps 21 are pro- 1 0 FricEf it? a halves fold over the adjacent side portions vided, eachstrap being pivoted to the re:-

spective pivot point of the side. straps and top straps at corresponding ends and'havsing their other ends pivotally attached to r 7 ""1 the base or center strap slightly above the" v pivots of the restsas at 22. The pivotal ,atta'chment of the respective formed sides; of the rack formed by the linkage described is two independent pivotsat each siderof the base strap so that the rack sides or of the base strap; Inother wordsfthe rack sides told oneacli side of'a central line (see-- Figure 2 The diagonal straps 21 are The joining end of a section of each'diagonal strap extends slightly beyond its pivot pin 23 andh'as an indentation Qtformed there- }Lin cooperating with an indentation 25;" formed inthe adjacentface ofthe'aligned companion section providing a detent for a-snap setting of the Sections in alignedbrac V ing-position when1theindentations-24 and 25 are registered (jsee Eigureiy The .center' strip is depressed over that portion; 14;? between the rest pivots and the top st'rap'pivots, this-depression forming a straps are placed in back of -the top and on' the depressed portion. To collapse therack, I I

straps are broken centrally on their section joining [pivots 23 upwardly and .thesidestraps are broken at "their sec'tion. joining;

enable the rack to bez'folded -orcollap'sed V intofla'length slightly shorter "than the length of the "base strap and of very-slightly greate so width 'th'an the base.strap,- siblepost is by means of a shortpost 26' The attachmentof the rack'to the extenadapted to be inserted into the upper end any type of-holding socket. This post is limited lin its insertion means of a pressed portion 27 wideningthe post slightly and the body of x V this-three11-point pivotal attachment and the slight binding'efi'ect of the brace relative to thescrew, the rack is not easily 'dis'loidge'd'from a set position. Furthermore,

each formed. of a pair or sections of equallength pivoted together by pivot pins 23.

clearance'for'the folded sections of diagonal straps when the rack is collapsed'since these: 7

side straps and pivoted to thecentralstrapdescribed from the inner pivots of 111611131 111 the directionsabove described will "of thefmain post of the music stand" or intovidedwithaslot 82. This slot 82, is traversed byfa screw 33 engaged into thepost.

Felt or leather washers 34 aredisposed be 1 tweenthe screw headandthe-brace, and the screw 'is-riveted 1 after, being screwed-down to "such degree asto allow a frictional ena ement of the brace between the washers the post i as there would be altendency for the pivot pins 282, 31 to wear an'd'becom e loose'dur- '80 .o

ing continued usage,the binding eflect of the brace engaged between the washersand the post will always-have the 'efiectiof fries 'tionally automatically "maintaining the rack Lin set position. r V c Having described my invention, 1 claim:

foldable vsheet holding ,rack "co nprising a cent of thecenter bar to move tron-1 a position parallel with said cen-ter strip to a position at right angles thereto, an' upper bar pivots ally connectedto'the top of; the i-center bar; c and adapted to inove-ln the samemanneii'fl' astherestja side bar, comprising,sections hinged together, said sidebar p votally cons er-,bar,"a restpiv'otedto the base r sections, hinged together, said. bracepiVOtter bar-and to'the diagonally opposite 'cone nection of the upper bari and sidebar, each:

' ally connectedto the lower end ofthe cen-g the diagonal brace of said hinged sections,-1nakin g upthe i rack,

being disposed in a different plane, so as, v I

to swing f reely on their pivots, and said center strip beingcentrally-depressed so as, I

In witness whereof, I herennto subscriber j to provide a portion also; in' aldifierent' plane.

my name.

gMARIE WI LIAMiK U -T at anfintermediate point Theextreme'upper end of the post 26 is pivotally attached, byz-ineans of a pivot pin'28", to the upper end 7 back of the central strap 14-: substantially centrally ofth e lengthofthe strap. An'ad- 'justable brace is pivotally attached to thelower endof the bracket by a pivotpin i -31,;and'ithe outer end ofathebraceisi'prd of anca'ngle iron bracket 28 securedrto the nesting the respective outer end of the rest?? and topbar, a diagonal brace, comprising,

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