US1572718A - Box-making machine - Google Patents

Description

Feb. 9 1926.

w. v. HART Box MAKING MgcHINE Filed April 28. 1924 2 Sheets-Shea?l l 'wa/fer u Han;

Feb. 9, 1926. 1,572,718

W. V. HART BOX MAKING `MACHINE Filved April 28. 1924 2 Sheets-Sheet 2 Wal/er l/ Hart Patented Feb. 9, 1926.

UxNlrEr STATES.

PATENT OFFICE..

WALTER V. Heier, 0F JAoKsoNvI-LLE, nLoniDA; nrgsrn HAnfr nEDDoN nnivrnvisrnn- BOXMAKING MACHINE Application filed Aprilgs, 1324. Serial Nfo.

To all whomz may concern:

i Be it known that lVALTnn V. HART, citizen United States, residing at,A Jacksonville, county, of. Duval, and Stateof Florida, have invented certain new and useful` ImprovenienitsV in. BoxMaling"Machines of which the following isa specilication.

My invention relates toy box making niachinesoi' theclass in'whieh certeinnielnbers of the boxare held stationary inixed positions while othery members off the box` are being nailed inplace to Ytoi-m` the complete box, t

yThe main and particularl object and ad vantage of ythis invention to provide a machine on i'vliich boxesinay benailed a'eeuf rately together inthe Shortest possible time, 'with the leasty ainountwof manualflabor and lwithout necessitating a highly skilled operator. A further object, is to` liro'vide` such a machine ofruggedconstruction, few parts, and comparatively inexpensive to manufacture.

These and various other objects and advantages will-be readily understood from the it'ollowing s peoitifcationand from the accommiiying drawings of a preferred embodiment ol' myjinve'ntion, but it will be understood that various`modifications might be made without departing `from the scope of the invention.

Fig. 1 is a front elevation of the preferred embodiment of `my invention.

` Fig. 2 is a plan view', and

Fig. 3 is a side elevation oi. same.

in a general way the machine may be said lo consist oit a lfixture .in which certain ineinbers of a box are held. This fixture is mounted on a stand in such a. mannerthat it may be rotated by means of a treadle,

so that the. side onwhich the operator worls .is always uppermost; After the assembling oit the box is completed, the fixture is re.- turned to its original or `startingposition by means oiI the treadle.

Referring now to all views, siinulta.- neuslr. .131s the t0n Qt 21 Stand which is provided with fourlegs 2, peir Iopl' `Jthese legs is p'rovidedwith a brace 3.2"The ten l is solid. and .tonus e. benches@ which th.wel1, i f`th @ashlee ifs nerferdl @if tendine upwardly f1 im @diend it the tr The fixture for holdingl the box ends and partitions in place'while ythe sidesand bottom are being nailed on, consists ofa base plate 7 from which extend two end pieces 8 and 9 and a center piece 10. In close proxilnityto the endpie'ces and the center piece, springs 11, 12,'annd 13 arev placed. These springs arekzatt'achedto the base plate 7. The end pieces 8 and 9', the center piece 1Q, as well thesprings 11,12, andjl are rec-l tangularf in sliepeand have the conformity and size of ythe inside of thebox to be asn sembled, The enldjpieces of the'lixture are provided at their centers withoutwardly extending stnds 14on which the fixture may ber revolved'. In its noiinalrposition, the `fixture -restsdirectly on the solidtop 1 Bushings 15, free to slide up and down between the guide strips 5 6, are inserted between theseguide strips and in vthese bushings the studs 14; revolve. Y

'Canis lare rigidly attached to the studs 14. These cams are; provided with four notches 17, 18, 1,9,and 20. Notches 17 and 18 are used in turning the assembling lixture while nailing-the box together, while notches 19 and 2O are used for returning the fixture to its original position. These operations will presently be explained. Operating levers 2l are connected by means of levers 22 to a treadle 23, in the well 'known manner illustrated. The upper parts of the operating levers 2l are forked, as shown at 24, and in these forked parts studs 25 Vare riveted. These studs engage with the .not-ches in the cams 1G, whenthe treadle 9.3

is depressed It will be noted that the operating levers 21 are not placed on a line drawn through the center of the nnichine. This is indicated by 26 and 27- Whieh represent the center linesotl Vthe opera-'ting levers and the machine respectively. It is plain that when' the treadle 23 is depressed, the studs 25 will engage inthe notches 17 and lift theassembling fixture, at the saine time revolving it onequarter turn. It' the treadle is-againdej- "pre1, ed, the studs will engage in notches 18, lijl 'and 'revolve the fixture an additional quarter turn.`

""'lVhen it isd'esired `to return thexture to original position,- the studsQzj 'inthe operatlnov levers `21"'niust engage/innotches "19,

veel trellis @een bre' to their operating position. To do this it is necessary to move the operating levers to the other side of the center line 27; this is accomplished in the following manner:

Referring particularly7 to Fig. 2, it Will be seen that the operating levers 21 slide in square bushings 9.8 and that these bushings are slideably mounted in frames 29 located at both ends of the stand. ,'Ihese frames are also slideably mounted, the bolts 30 passing through the slots 3l and are screwed into the stand. The bushings 28 are held ina central position in the frames 29 by the tension springs 3Q and 33, one end ofeach of which is fastened to the bushings 28, While the other ends are hooked over pins 34 and which riveted in the frames as shown.` These springs have purposely been omitted on Figs. l and 3 to simplify these views.

The frames 29 are provided at each end with members 36 and 37, bent at right angles to the frames and extendingv inwardly toward the center of the machine. Rocker arms 38 are pivoted atv their centers on cross members 39, forming part of the brackets 4. The ends of these rocker arms are made with inclined cam faces 40 and 4l. The end pieces 8 and 9 of the assembling xture are provided With pins 42 and 43 Which engage with the rocker arms 38 ywhen the fixture is revolved. It will be readily seen that the engagement of either the pins 42 or 43 with the rocker arms 38 will cause the frames 29 to slide to one side or the other through the action of the cam faces 40 or 41 von the members 36 or 37. Flat springs 44 and 45, riveted on the brackets 4, hold the rocker arms in place by the friction exerted by them ont-he rocker arms. To partly counterbalance the Weight of the assembling fixture and the box` placed therein, two tension springs 4G and 4'? are att-ached under the top of the stand while th air other ends are attached to a flat metal bar 48, as plainlyshown on 1 and 3. These springs act upon the fixture by means of rods 49, secured in-soclretsO, formed on the bushings l5. The lower ends of the rods 49 are threaded and supplied With vnuts 51, by means of which the tension on the springs 46 and 47' may be regulated. The machine is used in the following manner:

lThe bex ends are inserted between the end pieces 8 and. the box partition vbetween the center piece l() and the spring l2 ofthe assembling fixture. The boards forming the side of the box are now nailed in place on top of the fixture. A depression of the treadle causes the fixture to revolve one-quarter turn. The boards forming the bottom Vofthe box are nonTV nailed on the side uppermost. The next depression ofthe treadlerevolves the Xture aneth@ quarter-turn,- but as the vand 9 and the springs ll and 13;

fixture revolves, the pin 43 depresses the rocker arm 38, causing the inclined cam face 42 to move the frame 29, together with the operating lever, to the other side of the center line of the machine, thus placing Ythe operating lever in .position to engage in notch 19. After the boardsV are nailed to the side noW uppermost, the assembled box is removed from the fixture and the fixture returned to its starting position by two depressions of the treadle.

lVhile I have shown a fixture suitable for a box with one center partition, it will readily be understood that fixtures may be provided for the machine for any shape or size of box, with lany, number of partitions, up to the limit of the sizeof vthe stand and that such fixtures might be made interchangeable. i

Having thus described my invention and its operation, what I claim as new and Wish to protect by Letters Patent isz' 1 'In abox making machine, of the Class I described; a stand; a box assembling fixtureresting on said stand; discs rigidly attached to pivots mounted on the ends of said assembling fixture; a plurality of right hand and a pluralityof left hand notches out' on each of said discs; vertical guides, in which said pivots slide, attached to the stand; a treadle mounted on the stand; levers attached vto said treadle engaging in the notches cut in the said discs; and automatic means for changing the engagement of these levers from the right hand notches to the' lef-t hand notches and vice versa, when the treadle is depressed.

2. In a box making machine, of the class described; a stand; a box assembling fixture resting on'said stand; means provided on said fixture for correctly locating certainv members of a box; discs rigidly attached to pivots mounted on the ends of said assembling fixture; a plurality of right hand and a plurality of left hand notches c ut on each of said discs; vertical guides, in which said pivots slide, attached to the stand; a treadle mounted on the stand; levers attached to said treadle engaging in the notches cut in the said discs; and automatic means for changing the engagement ofthese levers from the right hand notches i levers attached to said treadle engaging in notches out in the seid discs; automatic means for changing the engagement of these levers from Jche right hand notches to the lef hand notches and vice verse, When the treadle is depressed; and means for eoimterbalancng the weight of the .said essemhlng ixture and of' the box., placed therein.

In testimony whereof, I, VALTER V. 10 HART, have signed my name this 2Q day of April 1924-.

VJALTER V. HART.

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