US2092323A - Blackboard mounting - Google Patents

Description

w. w. MYERS 2,092,323

BLACKBOARD MOUNTING Filed De c. 3, 1955 5-Sheets-$heet 2 I ii 10 H F ATTORNEYS Sept. 7, 1937; w. w. MYERS BLACKBOARD MOUNTING Filed Dec. 3, 1935 I 3 Sheets-Sheet s W INVENQTOR 6M Myuo B ATTORNEYS Patented Sept. 7, 1937 a uNireo STATES ATENT orricr.

2,092,323 BLACKBOARD MOUNTING Winter W. Myers, Hopatcong, N. Lassignor to Austral Sales Corporation, New York, N. Y., a corporation of New York Application December 3, 1925, Serial No. 52,636 8 Claims. (01. 35-63) This invention relates to combination black- Figure 8 is a vertical section on the line 8-8 boards, drawing, painting or display boards o Figure adapted for mounting on the wall of a room, es- Figure 9 is a horizontal section on the line 9-9 pecially. for class-room use, and more particu of Fig e d larly relates to the type of removable and reversi- Figure 10 is a detail showing the tray support ble board shown in United States Letters Patent for the modified arran e No. 1,984,845 issuedDecember 18', 1934. Referring to the drawings, Ill indicates the wall ,In boards of this type it is desirable to have surface of a room, H the usual blackboard of the fixtures include as few parts as possible; also slate, it the bottom rail 1' Supporting Strip for to avoid unnecessary weight; to reduce the num t board, H: the top retaining rail, and the her of removable parts requiring adjustment, f r usual finishing strip. In the installation of the use; to provide simple and easily set-up means usual slate board H, a chalk shelf or rail is set for holding the reversible boards firmly in posion the strip l2 and the slate sections rest on the tion when used for writing, drawing or display chalk shelf and are retained in position on the purposes and yet permit removal and resetting Shelf by a moulding Strip-Secured t0 Chalk Shelf- 15 of the board sections without undue strain on the In c m n n my mp v removable board board or exertion on the part of the user, so that sections 15 with the usual slate board I remove children may readily make the desired changes. e su a k Shelf a d retaining Strip a Seat In the construction and setting, up of fixtures the slate sections directly on strip [2 as shown for such boards it is also desirable to provide in Figures 3 d 5 and e moulding strip as 20 standardized. parts that may be readily employed S ow a 6 s as ened. under the rail l AS in conjunction with the usual blackboards by the a substitute for the usual chalk shelf I provide replacement of few parts and addition of th the channel rail H, which is securely fastened to parts entering into the new combination. the rail l2 and wall ID. Upon the pp fl e 5 My invention is'illustrated in the accompanyof a is Secured a Specially 'CllrVedTail ing drawings in which-- Figure l, which has six functions. Referring Figure 1 is a perspective view of a section of more parti y to F e 3 an 5. i will be the usual blackboard mounted on a wall and proseen that the curved part a of rail l8 serves both vided with my improved fixtures for a ombinaas a substitute for the usual quarter-round strip 30, tion board, and showing one removable section for Securing the Slate Section in position on in the vertical position, a removable section in the l Strip and o as a back p for the inclined position or easel effect, and showthe rem v e board SectiOn the curve ing one of thehinged brackets swung outward serves as a front stop for the removable board in the supporting position for the inclined. board s the curves c an 11 form a channel r section; the board to rest in and in which it fits. freely 35 Figure 2 is a horizontal section on the li exceptas hereinafter indicated; the curve 0 with 2--2 of Figure 1; curve 1) form a shallow channel which serves Figure 3 is a vertical section of the arrangeas the rail for chalk, pencils, erasers, etc.; and ment shown in Figure 1 with the removable board e ve 6 a Serves as D o holding down in the inclined position and supported on th the work shelf l9 hereinafter more specifically 40 hinged brackets at the proper angle to be able r d freely to insert the same under the top rail after Between the flanges of rail ll bracket arms 2:} the board, in the position shown, is moved up a e h ed in y Suitable manner y P wardly; and the dimensions of the arms are such that they Figure 4 is a perspective view showing the may be swung parallel to the rail between the ,5 removable boards in i the vertical position and flanges so as not to project therefrom when folded a work shelf and tray supported by the brackin, or obstruct the use of the board as will be obets; served by reference to Figures -1 and 2. At the Figure 5 is a vertical section on the line 5-5 outer end of each bracket arm is secured a double of Figure 4; hook 22, Figures 3 and 5, having its upper part 50 Figurefi is a cross section on the line.6-B of d bent outwardly and upwardly to a point in Figure 5; V alignment with the upper edge of the bracket Figure? is a front elevation and partial secarm to form a support for board 15 when used in tion of a modified form suitable for use without the inclined position as shown in Figures 1, 2, and

the fixed blackboard; 3, and its lower end e bent up and back to form 55 a hook for supporting the tray 23 which is prolower corners of each board l finger holes 2' are vided with slots 24 into which hooks e may be provided for adjusting the board to its several poinserted to engage the tray as shown in Figures sitions. 4 and 5. The bracket arms 20 are located so The chamfer of the usual top retaining rail 5 h a p r f rm W l pr j outwardly Wi I3 is cut slightly wider to receive the flange of the width of each board 65, and the trays 23 are th auxiliary t l to rail 29. The flange of of such length at a h y may be n a d by this rail may be clamped under the tongue of hooks e of each pair of brackets 20 and thereby n 5 but in the preferred arrangement, s lock the brackets and tray together and prevent shown in Figure 3 thi flange is secured directly the bracket arms swinging on their hinge pins. upon the slate beard and t the wall In by 10 When a removable board section is used in the screws Raj] 2 may be of any desired shape in inclined Position it is seated on hooks d and the cross section according to the ornamental eifect upwardly projecting angle of those hooks will predesired but it will be such as to afiord a Sufii vent the bracket arms swinging inward while the Gently "Vide space to permit free insertion of board is resting thereon. i

N the upper end of the board behind the rail, and T brackit i are also geslgned to 5.11psufiiciently deep to permit raising the board to pm the she f 9 .When h. board fectlons the height required to seat and unseat the board I 5 are held in the vertical position. This shelf it h nnel in bottom ran 8 For the as shown in Fi ure 4 may be the full width of a 10m S c a b purpose of clamping the board I5 in the vertical board section !5 and at its inner edge it is bevm a position when in use and to hold it firmly to elled as shown at 1.. to engage under the bone 0 prevent it fro rattling or s aymg, a series of of rail 58 for holding the shelf down on the bracket arms. Each bracket is also provided on its upper edge near its outer end with a forwardly or g 2 V 1 9 I 3 i ifig g; g f g g i in Figures 1, 3, and 4 or rubber blocks or buttons 25 side and in alignment with the Spring clips 25 '52 as SIZOWlllll Figures 7 and 8. When spring fulwhen the brackets are fully extended at right crums a employed they may be narrow and angles to the rail H, and secured to the underside r d pairs o engage the vertical edges of the work shelf and projecting rearwardly over P f of adJacent bfjardsi as Shown slots 26 are spring blades 27 which are adapted In Figure 4, they a be strips sufliciently wide to engage under clips 25 as shown in Figures 5 to Overlap w adlolnlng edg s of adjacent and In adjusting the helf in position on boards. In either case the fulcrum piece 30 will brackets 25] it is placed so that clips 25 will enter have a leaf 7c bent to form a p olectin Shou de slots 26 and then the shelf is pushed backward l and a tongue Slide m bent back 9 w to cause blades 27 to slide under clips 25 and bevel against slate i The downwardly prolectmg 20 to engage bend c of rail l8 and thereby holding flange of rail 29 is Curved outwardly 130 form a the shelf in position. In practice clips 25 and shoulder 71 and bl d 27 may b provided ith indentations or of this shoulder is positioned relative to shoulder cross-wise corrugations (which for simplicity of l 011 ad 80 s to e l y above the atillustration are omitted) which will interlock to ten and the clearance between the two shoulders 40 insure against the shelf slipping forward after will be sufiicient to permit insertion of t e uppe being adjusted in position. Thus the engagement edge of board l5 freely into the cavity under of clips 25 and blades 2'! will hold the shelf in rail 29 so that no pressure will be required to position and part c of rail l8 will hold the inner insert the board. The vertical spacing between rigid blocks, but I prefer to employ a resilient device such as spring strips or blades 39 as shown that the entrance of clips 25 into slots 26 will also so that after the board is inserted under rail serve as a locking means for the bracket arms and 29 the backward movement of the lower end of prevent their swinging on their hinge pins when the board for in ertion in its channel on rail I8 By this simple means it will be observed that against shoulder l and the outer face against the shelf may be placed in position for use and shoulder 12 with a yielding pressure so that when the brackets and shelf locked against displacethe board is seated in its channel on rail Hi the as an additional locking means for the brackets. It will be observed that by locating the shoul- 60 At intervals between ja p s of bracket ders Z below the line of contact on shoulder 12 arms, a tray Figure 1 may be Secured in the of rail 29, a three-point contact is provided for channel rail h ay may be of any desired the removable board, and by reason of shoulder form for receiving a chalk eraser or other devices. 1 being only slightly below houlder 11, all tendh removable boards y be of y desired ency to bend or warp the board is avoided while 65 construction or material and laminated so that t l affording sufiicient leverage on h ld r I both sides are usable, as for instance, one side may acting as fulcrums t provide firm holding of be of a material suitable for writing or drawing the board in the vertical position. Furthermore with chalk or crayon, and the other side suitable the pressure on the board caused by t squeez paper, p ctu s, 0r hooks for a g models, the board may be readily slid upward or downcharts, etc. As illustrated these boards have two ward when placing it in position. When the layers f and g, Figure 3, held together by a framboard is used in the inclined position the lower ing it of wood or metal extending preferably edge as above stated rests on hooks 22 and the 50 the shelf is in place. will cause the inner face of frame h to press 50 for receiving thumb tacks for holding drawing ing between the two shoulders is so slight that 70" around the four edges of the board. At the two upper edge bears against the slide m so that in 75 5 of -;the board is raised sufficiently returning the board to the vertical position the act Lofraising it .bythe aid of finger holes i will causeitto slide'upward on slides m and slip underrshoulder n of rail 29. Whenthe upper edge under rail 29 to clear the lower edge over rail i8 a slight inwardv and downward pressure will place the board in the vertical position of Figures 1 and 4. For convenience in hanging pictures or charts, the top rail 29 on its horizontal face is provided witha seriesof slots 3| into whichthe usual picture hooks :32 maybe inserted with the depending. hook'bearing against the front face of rail .29 as shown in Figures 3 and 4.

It will be understood that the arrangement illustrated in .Figures 1 to 6 inclusive is not limited to the" combination with a slate board and that the fixtures entering into the combination for supporting removable board sections may be attached directly to a wall surface without alteration in construction, and that the arrangement may be for any number of boards or a single board. 7 a .1 In Figures '7 to inclusive I illustrate a modified arrangement which permits of cheaper construction for single board units, and is adapted forready attachment to or removal from a wall. Inthisform ,I provide a frame having top and bottom rails 33 and 34 and side rails 35. To the top rail 33 is secured a retaining strip 36 spaced from rail 33 by a spacing strip or blocks 31. The top and bottom rails 33 and 34 are longitudinally slottedv as shown at 38 to facilitate fastening the frame to a wall In by means of screws 39 and for more readily adapting the frame for fastening to studs 40 of ordinary partition walls. Seated. upon and secured to bottom rail 34 is the retaining rail 4| for the removable'board Hi. This rail has a groove (1. into 40 which the lower edge of the board is seated and a groove 17 for chalk, etc. Screws 39 which hold rail 33 to the wall are preferably provided with rubber heads or cushions as indicated at 42 to form the fulcrums for board l5 instead of spring- 5 blades 3!! as in Figure 1, although if desired a pair of spring blades may be attached to rail 33. The insertion of the upper edge of board l5 under strip 36 and the backward movement of the lower end for insertion in groove (1 will cause 0 the board to impinge on heads 42 acting as fulcrums and hold the board firmly at three-points of contact as above explained in connection with the form shown in Figure 1.

Secured to rail 34 of the main frame and to the retaining rail 4| is a framing comprising sides 42, sill 43 and storage shelf 44. Hinged between rail 4| and sill 43 by pins 45 are a pair of brackets 46 which normally fold in under the rail 4| as shown in the dotted lines in Figure 9. Screwed into the 0 ends of brackets 46 are ordinary round-head wood screws or hooks 4'! for supporting the tray 48 which is provided with apertures 49 into which heads or hooks 41 enter to hold the tray as shown in Figures 9 and 10, and when the tray is in position the brackets will be held in the extended position. Hinged torail 4| is a work shelf 50 and which is supported in the elevated or working position bybrackets 46 as shown in Figure 8, the leaves of hinges 5| being counter-sunk on the 0 underside of rail 4| and shelf 5|) to clear the brackets. When not in use the shelf hangs down as shown in dotted lines in Figure 8 and serves as a cover for the articles stored on shelf 44.

Work shelf 50 is provided along its front edge 5 with a groove 52 which serves as a retaining groove for board l5when used in the inclined position as shown in dotted lines in Figure 8.

The ful'crums for the removable panels may be arranged in various ways without departing from the object of my invention. For instance, there may be. a series of fulcrums or spring blades extending across the width of a panel, or a, series of rubber cushions, or a single long strip or cleat, an important object being to provide an abutment against which the panelwill impinge when the loweredge is pushed into the seating rail and effectthe three-point contact to hold the panel against swaying or rattling movement.

What I claim is:

1. A wall fixture of the class described, having in combination a removable panel, a recessed top rail adapted to cooperate with the face of said panel and into which the panel projects, a ful-. crurn piece attached to the wall or panel supporting frame adapted to cooperate with the rear of said panel at a point below that at which the top rail cooperates with the face and against which the rear side of the panel bears when inserted under said top rail, and a grooved bottom rail in which the lower edge of the panel is adapted to be seated, the alignment of said top and bottom rails and thefulcrum piece being such that when the panel is placed in position between the top and bottom rails it will be held against swaying movement byv a three-point contact.

2. A wall fixture of the class described, having in combination a removable panel, arecessed top rail for the panel, a fulcrum piecefor the panel attached to the wall or panel supporting frame, and a grooved bottom rail in which the lower edge of the panel is seated, said top and bottom rails and the fulcrum piece forming contact points 1 disposed, respectively, in different planes and at different elevations, such that when the panel is in position between said rails it will be held by a three-point contact, the upper and lower front edges of the panel being held against the rails by the fulcrum contacting with the rear side of the panel below the top front line of contact.

3. A wall fixture of the class described, having in combination a removable panel, a recessed top rail adapted to cooperate with the face of said panel and into which the panel projects, a resilient fulcrum piece attached to the wall or panel supporting frame adapted to cooperate with the rear of said panel at a point below that at which the top rail cooperates with the face and against which the rear side of the panel bears when inserted under said top rail, and a grooved bottom rail in which the lower edge of the panel is adapted to be seated, the said top and bottom rails being in a different plane from that of the fulcrum piece such that when the panel is placed in position between the top and bottom rails it will be held against swaying movement by a three-point contact.

4. A wall fixture of the class described, having in combination a removable panel, a recessed top rail for the panel, a resilient fulcrum piece for the panel attached to the wall or panel supporting frame, and a grooved bottom rail in which the lower edge of the panel is seated, said top and bottom rails and the fulcrum piece forming contact points disposed, respectively, at different elevations, such that when the panel is in position between said rails it will be held by a three-point contact, the upper and lower front edges of the panel being held against the rails by the fulcrum contacting with the rear side of the panel below the top front line of contact.

5. A wall fixture of the class described, having lel thereto, said edge strips engaging the upper in combination a removable panel, a recessed top edge of said board at difierent elevations, respecrail under which the panel projects, a fulcrum tively, and a retaining means cooperating with piece attached to a stationary part of the fixture said board to hold the same in a position proxi- 5 and against which the rear side of the panel mate said wall, the cooperation between said 5 bears when inserted under said top rail, a chanboard and retaining means being effected by a nel rail forming a bracket housing, a grooved vertically downward movement of said board retaining rail for the panel seated on said chanwhile the upper edge thereof is gripped by said nel rail, said retaining rail having two longitudistrips.

nal grooves, one for seating the panel and the 8. In combination with a Wall board, means seating the panel and the other serving as a crum also comprising a guide to facilitate the chalk rail, brackets hinged on and adapted for insertion of the upper edge of said board into edge of said board is moved toward the wall to WINTER W. MYERS. dispose the board in a plane substantially paralother serving as a chalk rail and brackets hinged for removably mounting the same on a Wall or 10 on said channel rail and adapted to be disposed the like, said means comprising an upper edge in the housing formed thereby. strip secured to the wall and a yieldable fulcrum, 6. A Wall fixt re of the class described, havsaid strip and fulcrum forming an opening of ing in combination a removable panel, a recessed suflicient size freely to receive the upper edge of 15 top rail under which the panel projects, a fulsaid board if said edge is inserted therein while crum piece attached to a stationary part of the the board is inclined towaid the wall and therefixture and against which the rear side of the after yieldably grip said upper edge by contact panel bears when inserted under said top rail, with the board at different elevations, respeca channel rail, a grooved retaining rail for the tively, when the lower edge of said board is 20 housing in said channel rail, and means at the said opening, a retaining means cooperating 25 like, said means comprising a pair of relatively board while the upper edge thereof is gripped by 3 board is inclined toward the wall, and thereafter the proper angle to fit freely to the Ope 35

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