US432477A

US432477A - casey

Info

Publication number: US432477A
Authority: US
Publication date: 1890-07-15
Anticipated expiration: 1907-07-15

Description

J. CASEY.

. BOX Mmmm MACHINE.

artented Ju1y'15, '1890.

(N0 Model.) 7 Sheets-Sheet I.

lffgl In vena? J lwwf (No modell) 7 Sheets-Sheet 2. J. CASEY.

yB0X MAILING MACHINE.

Patented July 15; 1890,

27 fawamwm, A, l@ @www` (No Model.) 7 Sheets-Sheet 3,. J. CASEY.

BOX NAILING MAGHINE.

No. 432,477. Patented July 15, 1890,

(No Model.) 7 Sheets-Sheet 4.

' J. CASEY.

BOX NAILING- MACHINE.

Patented July 15, 1890.

fNo Model.) 7 Sheets-Sheet 6.

J. CASEY, BOX NAILING MACHINE. No.'432,477.

Y azmdmm, MM hifi? r11 ag (No Model.) 7 Sheets-Sheet 7.

J, CASEY.

, BOX NAILING MACHINE. No. 432,477. Batented July; 15, 1890,.

@bia-rn 07 UNiTED STATES PATENT Ormea.

JEREMIAII CASEY, OF EDGElVATER, NEIVV JERSEY, ASSIGNOR TO THE CASE Y MACHINE AND SUPPLY COMPANY, OF NEIV YORK, N. Y.

SPECIFICATIGN forming peut of Letters Patent No. 432,477, dated July 15, 1890.

Application filed October 9, 1889.

To all whom t may concern! Be it known that I, JEREMIAH CASEY, acitizen of the United States, and a resident of Edgewater, in the county of Bergen and State 5 of New Jersey, have invented certain new an d useful Improvements in Box-Nailin g Machines; and I do declare the following to be a full, clear, and eXactdescription of the invention, such as will enable others skilled in the art to which it appertains to make and use the sam e, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification. y

In the drawings, Figure l is a front elevation of a box-nailing machine embodying my improvements. Fig. 2 is a side elevation. Fig. 3 is a rear elevation, certain parts being omitted. Fig.l 4 is a central vertical section having some ot' the parts shown in a different position to that in Fig. l. Fig. 5 is a horizontal section taken on the line X X, Fig. 3, and showing certain parts. Fig. G is a plan of the nail-feed box detached. Fig. 7 is a vertical section of the same, taken on the line Y Y, Fig. 6. Fig. 8 is a rear elevation, partly in section, of the saine. Fig. 9 is aplan of certain nail-feedways and delivery mechanism. Fig. 10 is a vertical section of the lattertaken on the line Z Z, Fig. 9. Fig. l1 is an enlarged view of aportion of a picker bar or feeding device. Fig. l2 is a vertical section of one of the chucks for holding the nails in position to be acted on by the drivers. Fig. 13 is a rear View of the same. Fig. lei is a side View of a certain friction-clutch and ad j aeent parts. Fig. l5 is a vertical section of the same, showing a driving-pulleyin connection therewith. Fig. 16 is a rear viewof a device for straightening crooked boards, capable of being attached to the machine and worked automatically. Fig. 17 is a side view of the same, showing a portion of the same in section. Fig. I8 is a top view thereof, also showing a portion of the frame in section.

Similar letters refer to similar parts throughout the several views.

A designates the frame-work, herein shown as made in sections rigidly secured together.

B is a table composed of two sections B B2,

Serial No. 326,477. `(No model.)

the latter being supported by rods b, secured thereto and passing through lugs formed on the section B, whereby it lnay be drawn out to increase the capacity of the table.

A b indicates bars secured to the section B2 55 and fit-ted to slide in grooves in the section B', forming a flush surface therewith. The table is vertically adjusted by means of the screw B3, engaging a nut b2, secured in a lug b3. Motion is imparted tothe screw by means of a hand-wheel h, secured to a sleeve b5, loosely mounted to slide on and rotate a rod Z1, having a bevel-wheel at its extremity engaging a bevel-wheel secured to the screw. The sleeve b5 and rod h6 are supported in arms 197, extending downwardly from the table, and are connected by means of a stud bs, secured to the rod Z1, working in a slot b9 in the sleeve. The sleeve b5, with its slot and stud connection to the shaft or rod b, permits the sliding of the hand-wheel blin under the table B, out of the way when not in use, and slid out from thereunder for convenience ot' mani pulation. The surface of the table contains rectangular openings Z110, (shown in Fig. 5,) through which nails may fall and be received in drawers b, sliding on cleats beneath the table.

Z312 is a rib cast on the front of the table and Iitted to slide in a groove a in the frame, by which said table is guided and held in a horizontal position. y

Z113 is a bar secured to the rib 1112 and extending on each side of the groove a to bear against the inner side of the frame, and thereby hold the table iirmly against the front surface of the same.

C C are nail-chucks, and are each provided with an extension c, adapted to tit and slide between rails D D', and are secured thereto at any desired distance apart by pins c', loosely inserted in any of a series of holes (l in the rail D, and passed vthrough a corresponding hole in the extension c. The rails D D are secured to end plates D2, fitted to slide a short distance vertically in ways formed in the frame A for the purposeof bringing the chucks down close on the work and withdrawing the same therefrom after the nails have been inserted.. rlhe downward motion of the rails is Ioo limited by stops a', while the upward motion of the same is limited by the stop-pins d', projecting therefrom and striking on the under side of the frame portion a2, which has a brace a3 secured thereto.

(Z2 (Z2 are rods extending from the upper side of the slide-plates D2, and provided with nuts d3, vertically adjust-able thereon, and against which certain moving parts et the machine act to lift the rails, as hereinafter described.

d* is a bar secured to the rails D D to serve as a brace. y

c2 c2 are cylindrical jaws sliding in openings extending through the body of the chuck and meeting at the center of the bore ci", at which point curved recesses c" are formed in the upper side to receive and direct the nails centrally through openings The opening c, through the upper pair of jaws, is snlliciently large to allow the largest-size nails used to fall through, while that of: the lower pair of jaws is smaller in. diameter than the diameter of the nail, which therefore rests thereon, as shown in Fig l2. lVhen short nails are used of a diameter smaller than the opening c5 through the bottom pair of. jaws, they will be suspended by their heads in the curved recess in the upper pair of jaws, and their points will rest on the bottom of the recess in the lower jaws. The jaws c2 are maintained in a central position by means ot springs ci, inserted in sockets and bearing against curved plates c7.

C8 are pins projecting' on one side of the jaws and fitted to slide in grooves c in the chuck. They serve to limit the inward motion of the jaws to a central position and prevent any rotary motion thereof.

C10 is a portion of a converging tube capable ot rocking on a pin en, attached to asp ring cl2, secured to the chuck, and passing through an opening in an extension el of the eonveyer, inserted between -the chuck, and a plate c, secured to the latter.

015 is a shoulder concentric with the center of the pin c, and upon which is fitted a corresponding shoulder ol the conveyor, by which means a smooth surface is obtained at the joint of the two parts when the conveyor is rocked. 3y drawing out the free end of the spring d2 the pin c11 is withdrawn from the extension c, and the conveyor may therefore be detached when required from the chuck.

E E are the drivers, having head portions c carried in T-shaped grooves torined in the bottom of a bar E', along which they may be moved to correspond with the position ot' the chucks C. At about the center of the harE the lower portion ot the groove is enlarged to admit of the insertion and withdrawing of the heads of the drivers. The ends ot the bar E are secured to end plates E2, fitted to slide in the grooves of the frame portion a2 against the end plates D2 of the rails D D.

e e are lugs formed on the plates E2 E2, and through which pass loosely the rods (Z2 (Z2.

c2 c2 are lugs projecting from the plates E2 E2, and into which are secured rods e" e, connected te a cross-head F, the latter being guided hyarodj", working in bearings f f.

F is a connecting-rod pivoted to the crosshead F and reciprocated by a crank F2, de riving motion from the driving-pulley G. At cach. rotation otl the crank the drivers E are forced down through. the chuck onto the work, driving the nails therein. The jaws c2 are forced apart by the nail-heads acting on the concave sides ol the recess cHl during the passage of the drivers. As the end plates are raised after each operation of the drivers, the lugs c' c come in contact when near their upper position with the nuts d, thereby lifting the rails D D and chucks from the work vto facilitate the removal and insertion el' the latter. The pins d prevent additional npward motion of the latter parts that might otherwise ensue from the impetus imparted thereto by the lugs e.

ll is a nail-feed box adapted to rock on pivots a a, which have a screw-threaded conneetion with lugs a", iormed on the frame A. This box is rocked by means of the crank l, secured to a shaft i', deriving motion from the main shaft Gv through the gear-wheels ffl', 2, t, and it The motion el' the crank is transmitted to the box through the connectingbars 7L and roclelevers h2 713, pivoted to the frame. The lever h2 has an arm 7L, to which a rod is connected, having a weight 71" snspended thereto, by which the weight of the box and its contents is approximately connterbalanced. Additional weights h may he added when necessary, and for this purpose a stud 7N is provided.

rlhe gear-wheels are so proportioned in diameter that the crank I makes but one quarter-revolution to one revolution of the crank F2, so that the box ll, which is shown tilted to its highest position in Fig. 4, will be brought to a position indicated by dotted outlines at h3 alter the first downward and upward motion of the drivers. At the next motion of the drivers thebox will be brought to its lowcrmost position, as at 7L", also shown dotted. lly this movement ot the box the nails are caused to roll to and fro within the same and arrange themselves in grooves contained therein.

The box ll is composed ot four portions 71 rigidly secured together, and a bottom por# tion constructed in sections concave in crosssection, each section having a pair ol' downwardly-extending arms on its under side. Some of these sections are stationary, while others are horizontally adj ustable to form a series of grooves hx, having a width corresponding to the diameter of the nails to be used, and in which grooves the nails are caused to arrange themselves and be snspcndcd by their head portions within the box.

IOO

Ion'

IIO

The two side portions 7W h2o of the bottom may be cast integral with the sides of the box.

7F31 indicates intermediate stationary sections having their arms 7L 7141 secured to bars 7L, whose ends are secured to the arms 7L,

.beneath the two outside portions of the box,

by which means these sections are supported andheld stationary. The sections H171,71 have their arms 7181 rigidly secured to bars 71?, while the sections hm have their arms 7L similarly secured to bars hw. The bars hm k12, attached to the arms of the movable sections, are supported on pins 71.13, projecting on both sides of two of the arms 7V of the stationary sections and passing through slotted openings in the bars 7am 7tlg, by which mot-ion sidewise thereof is afforded to form the grooveshX of more or less extent in Width. Each pair of movable sections has a lap-joint hltwhere they meet, having a rounded and smooth finish on their upper surfaces to allow nails to slide freely over them. The side edges of these movable sections are adjusted to and form the edges of the stationary sections to form grooves by means of levers 7115, secured to a

shaft

77,1, journaled in the arms 7L41 of the stationary sections, and one of these levers is provided with a handle 7tlg.

71W hls indicate pins projecting from the lever and extending through slotted openings in the arms 7u into bars 7tlg, rigidly secured to the levers hm, and having a slotted opening to admit of the shaft 7L16 passing through the same. On turning the handle in one direction the bars hf 7L2 are reciprocated in opposite directions, causing all the grooves to be enlarged simultaneously, while the reverse mot-ion of the link will diminish their width of opening. In order to regulate this degree of opening, I provide a stop h2o, secured to the arm 7L, and between which and the side of the lever H15 a nail of the diameter to be used is inserted, as shown dotted in Fig. 7.

7L21 is a spring having one end attached to the handle hl" and the other end to the pin, and serves to hold the nail in place, and consequently a uniform width of grooves is inz'lintained.

rlhe surface-of the sections is curved both longitudinally and transversely, forming depressions 7L at the forward ends of said sections, as clearly seen in Fig. 7, in order to scatter the nails and cause them to fall in the grooves when the box is rocked.

71.22 h22 are openings in the rear side of the box, and vthrough which the latter may be emptied when tilted.

71,23 7b2 are covers for the openings 7W, sliding in grooves and provided with finger-pieces having extensions to enter notches in the side of the box, whereby the said covers are supported.

'lt-2l are grooves for receiving partitions 7W when it is desired to use nails of different sizes simultaneously, each size being therefore required to be kept separated in the box.

h2 are stops to prevent the nails suspended in the front portion of the grooves from sliding backwardly therein when the box is rocked downwardly.

L is a device for clearing the front portion of the grooves of nails which may have assumed a position tending' to clog the passage of nails through the orices 7028 in the front of the box. It consist-s of a bar 7, pivoted to the sides of the box and having arms Z', concave on their under side and arranged to cover the grooves hx at a sufficient distance above the same to allow of the free passage of the nail-heads. Should nails enter this concave opening above the grooves irregula-rly, as end foremost, the exit from the box is clogged, and tourem edy this the arms 7 are adapted to rock a short distance upwardly when the box has nearly reached its lowermost position and then return to its normal position immediately after the box has commenced to ascend. It is operated by means of an arm 72 on the bar 7, extending through the front of the box and upwardly in front of the same. The latter portion contains a cam-surface 73, between which and the front. of the box is a pin 74, extending from an arm 75, pivoted to the frame-work at 76. As the box approaches its lowermost position the pin 74 comes in contact with the cam-surface Z3, causing the arm 72 to be forced outwardly, and thereby rotating the bar, and consequently raising the arms 7 and releasing all nails that may have got in irregularly.

Z7 is a spring' serving to restore the arms Z to their lower position duringthecoinmencement ofthe upward motion of the nail-box.

7b2T are stop-pieces pivoted to swing over the orifices 7L?S to prevent the feed of nails from any one or more grooves 7L when not required. The two outside orifices in Fig. l

are thus shown closed.

K denotes mechanism for delivering the nails after passing from the feed-box to a picker bar M, which picks a set of nails therefrom each time the drivers ascend. This mechanism consists of a series of bars, some of which are stationary while others are movable, in order to form grooves corresponding in width to those in the nail-box for the passage of nails of the required diameter.

7c are the stationary bars secured to the frame A, which has upwardly exten ding posts a5, between which the nails slide. These posts have their top surface inclined sufficient-ly to allow the heads of the nails resting on the plates forming the grooves to slide down the same by gravity. The plates 7.32 are rigidly secured to a cross-bar 7e3, while the plates 7a are secured to a cross-bar 755, both of which bars are fitted to slide in keepers 7e, secu red to the posts a5.

7t'7 is a lever pivoted to the frame and connected by pins to the bars 7.-? 7.5, whereby motion imparted to the bars 7e3 will cause the bar 7Jl to move in an opposite direction. By this means the width of all the grooves may IOO ITO

be enlarged simultaneously orsimultaneousl y diminished, as desired.

7f3 is an ad justingscrew having` a neck pertion working` in a bearing la", so as to prevent longitudinal movement of: the same, and is screw-threaded into the bearing R11.

7tlg is a lug on the bar 7c3 to serve as a gage to obtain the proper width of opening in the grooves or nail-slides, and between which lug and the keeper 7.1i a nail 'n of the required diameter is placed. The stops its kl" will then prevent any accidental displacement of the plates.

The picker-barM is supported in guides m, secured to the frame, and is caused to slide a short distance erosswise of the machine by means ot a wedge-shaped cam m', secured to one of the end plates E2 and acting on a roller m2, attached to the picker-bar M. The motion of the latter in a reverse direction is caused by a spring mi, surroundingl a fixed rod mi and bearing on a cross-barili, having one end resting against the' frame and its other end against the picker-barril. The rod 'mil is provided with nuts,whereby the tension of the springs may be varied.

rlhe pickcnbar M is iliade in two sections 071.67727, a part ot` which is shown onV an enlarged scale in Fig. ll. The section m extends the entire length of the device and has the anti-friction roller mi journaled to it at one end, and the bar of bearing against it at its other end.

ons indicates openings opposite the nailslides for the passage of nails.

mi designates angular plates detachably secured to the upper surface of this section, in order that they may be renewed when nee essary.

'lhe top section nl.7 is preferably made in two parts mm m, in order that nails et two ditte-rent diameters may be used simultaneously, it desired. These two portions ol' the sections mv7 are loosely connected to the bottom section by pins mi?, itting slots arranged at such an angle that when the said portions are drawn forward parallel and angular grooves 772m are formed, through which the nails are iforeed and allowed to drop through openingsmtinto suitable receptacles beneath the bottom section. The side edges of? the two sections normally coincide and are held in this position bysprings m1, attached to the parts mi" fm. and having their ends secured to the trame. In order to set the picker-bar for use, the upper section is drawn Al`orward and nails of the diameter to be used inserted at 011V, causing the pointed end of the plates nl." to projectbeyond the adjacent side of the upper section. Nails may therefore slide against the latter, as shown at 011,1,Fig. 9,and on the crosswise motion of the bar M will be carried to the opening mt, while the edge m acts as a stop to the advance of other nails, as shown in Fig. l1, which also shows in dotted line the position of the plate 7i', Land nails n. By this yielding action of the upper section nails in any particular groove that may vary a trifle in diameter or form maybe conveyed by the picker-bar to the chucks without injury to the parts or affecting the l'eed olf nails in the other nail slides or grooves. Then nails oi two different y diameters are to be used simultaneously, one part of the upper section is set by two nails of one size and the other part by two nails of the other size.

fa ya are are-shaped plates rigidly seen red to the lower section m opposite each nail-slide and afford a support and guide for the tubes n?, havingv tunnel shape openings to receive nails from thepicker-bar as they fall through the openings m8. These tubes have a sliding connect-ion with other tubes n, secured to the base portion el.

al are setstuds secured tothe front side of the tunnels and passing loosely through the plates n', in which they are secured by a split or other pin. By this arrangement the tubes may be swung sidewise to correspond with the position of their respective chucks.

l is a device applied to operate on each nail-slide independently foi-stopping the feed of nails from any number of them at regular intervals during the strokes ot the drivers, and is used chiefly when nailing the bottom pieces otl a box to the side and end pieces. It is essential to provide means to vary the number ot nails used at each stroke of the drivers, for the reason that more nails are required to secure the bottom piece to the end portions than to the side portions of a box. The former may require eight nails,while four will sullice l'or the sides. It is also essential to provide means whereby the bottom piece may be either nailed to both end pieces first and then to the two side pieces, or to an end piece first and then to a side piece alternately. It may be done either way by the followingdescribed cams act-ing inconjunetion with the device P.

The device l consists of a bar 1'), mounted to rock in bearings al, attached to the f rame, and having` arms p secured thereto and extending upwardopposite each nail-slide. The arms p' are provided with ordinary springbarrels at their upper extremities.

pgare rods pointed at their tips to enter the grooves of the nail-slides in front of the nails and prevent them from descending when otherwise free to do so. These rods pass centrally through the spring-barrels and have pins extending through a slot in the same, which slot has a'shoulder at both ends, whereby on turning the rod p2 slightly by its head portion the pin will engage with a shoulder and be locked in a position to either stop the feed of nails or not elteet the same when rocked toward them. lydisengaging-thepin from the foremost shoulder-in any one or more of the spring-barrels the rod p2 is forced rearwardly toward. the nail-slides by the spring within the barrel and stops the feed ot' the nails when the device is rocked. The bar 19 TCO IIO

is rocked by a cam p3, secured to the shaft 1' and acting on a roller p4, connected to a rod p5, pivoted to an arm p of the bar p. The bottom end of the bar p5 is bifurcated to pass over the-shaft t', which acts as a guide for it. Two forms of cams p3 p7 are here shown, forming one piece capable of being removed from the shaft and replaced in a reverse position, so that either one of the cams may be used. The cam p3 has two high and two low faces, each extending around one-quarter the circu m ference, and their peri pheries are concentric with the center of the shaft. By the use of this cam the feed of nails is stopped from any one or more nail-slides at every alternate stroke of the drivers. The cam p7 has one high and one low face, each extending around one-half the circumference, and by its use the feed of nails is simultan eously stopped during two strokes of the drivers in succession and allowed to feed during two strokes alternately. lVith the former cam the bottom portion of a box may be nailed first to a side and then to an end alternately, while with the` cam pit-he bottom is nailed to the two sides lfirst and afterward to the two ends. Then this automatic action is not required, the device is rendered stationary by means of a hook p9.

p1) is an arm mounted to rock on a stud p11), and is acted on by a spring p11, Vagainstastop p12, to hold the cams 123197 on the shaft and facilitate their reversal when required. 1

Q is a gage against which the work is placed to be operated on. It is caused to follow the vertical movements of the chucks, in order that portions of boxes of thin material may not slip over it when the chucks are raised. It has also ahorizontal movement to and from the face of the machine. The vertical motion to this gage is caused bythe cross-head F acting on rods Q, working in guides Q, and having blocks Q2 secured thereto. These blocks are provided with grooves, in which loosely slide bars Q3, connected to the gage Q, The latter is free to stop by gravity until the bar rests on the bottom of slots a in the frame. When the cross-head is nea-r .its upper position, it acts on the rods Q, carrying the gage Q upwardly with it. The horizontal movement of this gage may be effected automatically or by hand. In nailingportions of boxes together, each portion being of equal thickness, no horizontal movement is required; but when the sides of boxes are of thinner material than the ends some adjustment is necessary after each stroke of the hammers when nailing the bottom portions on, in order to centralize the different thicknessesunder the chucks. To effect this,l provide the following mechanism: Q'1 is a shaft journaled in the t rame A and provided with arms Q5, which bear against the ends of the bars Q3. QG is an arm secured to the shaft Q4, and has pivotally connected thereto a slotted segment Q'f, provided with a graduated index.

Qs :is a rod connected to an arm of the 1nent,and pivotall'yconnected at its lower extremity7 to a frame Q19, carrying a pair of rollers Q10, either on'e of which is capable of being swung in a. position to be acted on by cams Q11 Q12, similar in construction to those already described.

When the gage is required to move in and out horizontally and alternately with each stroke of the hammers, the cam Q12 is used, and when the gage is required to remain in a forward position during two strokes of the hammer and back during two strokes alternately the cam Q11 is used. The change is effected by means of a handle extending from the frame Q, and which is capable of being sprung over projections in a sector connected to the bar Q8, and thereby held in either gcsition.

Q13 is a link pivotally connected to the bar QS1 and to a support secured to the frame, and serves to support the bar Q5. When this horizontal movement of the gage Q is not required, a spring-actuated stop Q1'L is arranged to enter a recess in the joint-pin of the bar QS, thereby holding` the latter in its uppermost position, and therefore free from the action of the cams. To set this gage in order to centralize the thinnest sides of the box under the chucks, the screw of the segment Q7 is loosened and the latter rotated until the pointer on the stationary arm is opposite a mark on the graduated scale corresponding to the thickness of the side pieces of the box. During this time the roller Q10 will rest on the high part of the cam. The screw is then tightened and the gage will be advanced to the proper position each time afterward automatically to snit any number of sides of similar thickness. The ends of the box, which are usually thicker than the sides, may be centralized under the chuck by another gage hereinafter described, or this may be effected by the same gage, as follows:

R is a cam secured to a shaft o", having a handle r, also secured thereto. The shaft o" is journaled in a slotted segment r2, secured to the 'frame A. The cam R may be rotated and secured in position by means of a screw passing through the slot in the segment into the handle. rlhe segmentis provided with a graduatedscale, and the handle has a pointer whereby the proper position of the cam to limit the backward movement of the gage to correspond with the thickness of the material is readily effected.

Q15 are springs tending to draw the gage rearwardly when released by the cams.

S is a gage adapted to be used for boxes, having one or both of its ends set in beyond the side portions. It projects through the face of the machine in two parts, connected at the back.

s indicates rollers su pportin g the rear of the gage. rThis gage is set forward in any position by means of a crank" s', connected to a shaft 32, having a slotted segment 33 secured thereto. The shaft s2 is supported in a bracket IOD IIO

s4, secured to the frame and provided with an arm having a pointer in connection with a graduated scale on the slotted segment. The gage is secured in position by a screw T is a gage extending across the machine at a suitable distance above the table, so as to leave a space between its lower edge and the surface ot said table, and it may be used in conjunction with either of the above gages. It is secured to-slotted end pieces t, working on studs and also on a shaft t', extending across the machine aud having levers t secured thereon, provided with pins which euter slotted openings lf". One of the levers t2 is provided with an arm, having a hand-piece t" attached thereto, with a pointed extremity to indicate on a graduated scale the proper position ot the gage to centralize boards ot any thickness. lly the use of this gage the side pieces of a box maybe nailed to the end pieces in cases where one of the ends is set in, as shown dotted in Fig. 4. The gages S and T are shown in line to adjust the position of the end centrally under the chuck, while the gage Q isset to adjust the distance the side is to project. After one side has been nailed it is turned over to have the other side secured, and, as shown, the opening below the gage T allows the projection of the side to pass through. lVhen nailing the opposite flush end ot' the box, the gage Q is advanced to a position tiush with the other two gages.

T is a treadle mounted on bars t, secured by setscrew in sockets t, the latter being mounted on a shaft t7, journaled in the frame. The bars t rest on tiattened portions ot' the shaft and impart motion thereto on depressing the treadle. A lever secured to the shaft and jointed to a post serves to operate a lever t3, fulcrumed to a stationary support.

t is a spring to balance the weight et the treadle when extended outwardly, and works in conjunction with a spring attached to the lever S to lift the treadle.

V is a clutch adapted to transmit motion from the driving-pulley G to the machine during one complete revolution ofthe former, and automatically to disconnect and allow the driving-pulley to become a loose pulley. It consists of a central portion rand an annular plate yr', both secured to the shaft G.

U2 is a sleeve having segmental portions projecting within a recess in the hub of the pulley.

r3 indicates rollers, which on rotatingl the sleeves are carried up on the high part ot' camsurfaces iu the portion t', thus bringing them in contact with the hub of `the wheel and causing motion to be transmitted from the pulleyT to the shaft.

et is an annular groove extending around the face et the sleeve, and within which is placed oneor more coil-sjniugs 1*", having one end fastened to a pin projecting from the plate fr and the other end attached to a pin secured to the sleeve. This spring tends to rotate the sleeve and carry the rollers up on the high part of the cam. The sleeve has a {nojection r, against which acts a Iyielding stop device, consisting oi a lever rl, pivoted to a stud fI'Rand having a rod fni, eontaininga head portion rl", working in a recess in the lever. A spring fr tends to press the head portion against a step-shoulder om. tdi" is a spring tending to press the stop constantly against the periphery of the sleeve.

t is a rod pivoted to the bar tAq and extending through a slotted opeuingin the alm of the stop-lever fr?. Uf to allow a steel plate r1, secured to the arm fr", to enter, whereby on depressing the rod 1f by the treadle the stop is drawn out of engagement with the projection of; the Sleeve. The latter is then t'ree to turn by the action ot the coil-springs causing the rollers to malte a trictional contact between the pulley and the shaft.

`irlis a rod project ing from the shaft, which on turning will strike on the rod u and lleelt it sutticiently to allow the stop-lever e7 to disen gage theretroni and bear against the sleeve, in order to stop the motion of the latter as soon as the projection makes contact therewith.

' if is a foot-lever adapted to lock the parts and prevent accidental starting ot' the machine.

The spring u, being connected to the rod rl". serves to draw it toward the clutch.

V is a device tor imparting a backward motion to the machine, and consists ot a slide-piece rl, .fitting a recess iu the hub ot the wheel and having a pin rm, extending through a slot lf2? and connected by a spring r2 to a support. This spring tends to keep the slide 1:1 trom ei'igaging a recess. in a collar (7, secured to the shaft G.

G2 indicates apertures in the pulley tor the insertion of a lever to rotate the same. `\Vhcn it is required to reverse the motion of the machine, in order to rectify any disarrangement of parts, the slide rl" is inserted in the recess ot' the collar and the spring r2 detached therefrom. This clutch at'tords a usctnl substitute for power when the latter is not obtainable, since by disconnecting the spring r2, actuatiugthe stop/1d, and inserting a'lever in one of the apertures G2 the machine'can be operated by impartin a to-andiro motion to the wheel, after the manner ota ratchet-drill.

\V is a nail-supply box resting on supports yw. un are pins projecting from thebox to cnter notches in the arms of the support to admit of the box being tilted and emptied.

O is a device for drawing boards that may be warped straight against the face ot' the machine, and is adapted to be attached to the machine when required. It consists ota bar o', mounted to slide in a groove formed in a carrier-bar o2 and projecting through slots a in the frame. It is provided with a roller o and drawn against; a cam-surface ol by means of a spring o. The bar o2 is piv- This rod is notched at;

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oted at o3 to abracket o4, secured to the frame, and has at its front end downwardextending lugs o5, between which works the upper end of a lever o, secured to ashatt o7. 'lhis shaft 1s rocked in one direction by means of alever o8 and weight o, and in the other direction by an arm 010, extending from the cross-head F, which engages a collar o11 on a rod 012, pivotally'counected to the said lever 0S. o13 is a bar sliding in ways formed in the baro', and 1s adj ustably connected thereto.

The operation of the device is as follows: As the cross-head leaves its uppermost position, as shown in Fig. 1G, itpermits the weight o9 to rock` the carrier-bar o2 on its pivot, causing the bar o to slide rearwardly against the cam o1G by reason of the spring o, thereby causing' the bar o13 to impinge on the bentout end portions of the boards, and draw the same flat against the face of the machine, after which the drivers, having descended far enough to reach the nails in the chucks, will drive the latter in the work. As -the crosshead approaches its upper position it will come in contact with the collar ou and restore the parts to their normal position, as shown in Fig. lt. Two of these devices are used, one on each side of the machine.

Having described this invention, what I claim, and desire to secure by Letters Patent, is-

l. In a box-nailing machine, the feeding box or holder having a series of stationary and movable bottom sections, arms connected to said sections and bars, two of which are connected to the arms of the movable sections and supported on pins projecting` on the sides of two of the arms of the stationary botto m sections, and passing through slotted openings in the said two bars, substantially as set forth.

2. In a box-nailing machine, the feeding box or holder comprising series of separate bottom sections having between them feeding-slots provided with stops or offsets near the front of said box, substantially as specitied. i l

In a box-nailing machine, the feeding box or holder having a series of movable and stationary concave bottom sections, the edges forming the ridges between which having lapping joints, sul'istantially as set forth.

4. In a box-nailing machine, the feeding box or holder having a series of concavebottom sections, which are also form ed with downward-curved portions or depressions at their forward ends, substantially as set forth.

5. In a box-nailing machine, the feeding box or holder, having a series of stationary and movable bottom sections, arms connected thereto, bars, two of which are connected to the arms of the movablesections and supported on pins projecting on the sides of two of the arms of the stationarybottom sections and passing through slotted openings in the said two bars, and the levers applied to an arm of a stationary section and adapted to actuate said two bars of the arms of the movable sections, substantially as set forth.

, G. In a box-nailing machine, the feeding box or holder having a series of stationary and movable bottom sections, arms connected thereto, bars, two of which are connected to the arms of the Imovable sections and supported on pins projecting on the sides of two of the arms of the stationary bottom sections and passing through slotted openings in the said two bars, the levers, one havingahan'dle, and the spring connected to said handle and to one of said pins, substantially as set forth.

7. The colnbination, in .a box-nailing machine, of the sets of chucks, each consisting of spring-pressed jaws or cylinders having opposite or meeting concavities and apertures, the apertures ofthe upper set ot chucks being larger than the apertures of the lower set of chucks, substantially as set forth.

8. In a boxnailing machine, the combination, with the chutes and drivers, of the two sets of chucks having apertures of different capacities, substantially as set forth.

f). In a box-nailing machine, the combination of the chucks, the chutes connected to said chucks, the rails having connection with said chutes, the end plates secured to said rails, and guideways in the supportiiig-frame, said end plates sliding vertically a limited distance in said guideways, substantially as set forth.

lO. In a box-nailing machine, the combination of the chucks, the chutes leading to the chucks, the rails having connection with said chutes, the end plates secured to said rails, stops to limit the downward movement ofthe rails, pins carried by one of the said rails, andthe supporting-frame having a portion against which said pins strike to limit the upward movement of said rails, the guide-rods having stop-n uts at their upper ends, the drivers carried by a cross bar or head secured to end plates of the rails, said end plates of the driver cross bar or head having lugs through which pass said guide-rods, substantially as set forth.

ll. In a box-nailing machine, the combination, with the nail-feeding box, of the clearing device arranged over the nail slots or grooves, which consists ot a pivoted bar having arms concave on the under side and an arm havinga cam-surface, arocking arm having a pin engaging the cam-surface of the latter arm, and a spring controlling or returning the device to its original position, substantially as set forth.

12. The combination, with the nail-feeding box or holdeigof the picker-bar comprising the two main sections or plates arranged parallel, and one havin endwise movement upon the other, and a series of interspaced oblique passages, which passages connect with discharge-openings, below which are applied arcshaped plates, to which are loosely connected cond noting-tubes having a sliding connection with tubes applied to the upper ends of the IOO IIO