US695428A - Nailing-machine. - Google Patents

Description

' No.. 695,428, .Patented Man-4|', |902;`

P. R. GLASS."

MAILING MACHINE.

(Appumion mea .my 1s, 1901.) (No Model.) i 2 Shts-Shaet 'l;

l, ll- /0 m. 9 m. ...W 4 M m.

ya a 0 .o1

v71 2a m a, a Q ..2

L 0 w r. a M d 6 .t .n B t a P. S. s A L E `1.....

MAILING MACHINE.

(Application filed July 18, 1901.)

. 2 Sheets-.Sheet 2,

NITED STATES PATENT OFFICE.

MACHINERY COMPANY, OF CI'IARLESTOWN,

YORK, N. Y.

WEST VIRGINIA, AND NEW NAIL'ING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 695,428, dated March 1 1, 1 902. Application filed July 13,'1901. Serial No. 68,714. (No model.)

T @ZZ whom t muy concern:

Be it known that I, PERLEY R. GLASS, a citizen of the United States, residing at Quincy, in the county of Norfolk and State of Massachusetts, have invented an Improvement in Nailing-Machines, of which the following de scription, in connection with the accompany-l ing drawings, is a specification, like charac ters on the drawings representing like parts.

This invention relates to power nailing-machines wherein the driver is reciprocated'by power; and it has for its object the produc# tion of a novel machine of this character in which the driver-reciprocating mechanism is normally held inactive and is rendered active by a mechanism operated upon by the work into which nails or tacks are to be driven when said work is brought into operative position under the driver.

The invention also comprises means whereby after the driver has made one-complete reciprocation the driver-reciprocating mechanism is automatically thrown out of operation and held in such `inactive position until the work has been brought into operative position to havey the next Vnail driven, when the operation is repeated. i

I have also provided a rotatiughopper to supply tacks or nails to the racewayand hopper-rotating mechanism, which maybe ren-M dered active or inactive, as desired, so that the hopper may be rotated whenever desired and for as long a period as is necessary to fill the raceway with tacks or nails;

In the drawings, Figure 1 is an elevation of myimprovednailing-machine. Fig. 2 is a section on the line 2 2, Fig. 1. Fig. 3 is a front elevation of a portion of the device. Fig.'4 is a partial view'of Fig. 1, showing some of the parts in another position; and Fig. 5 is a vertical central section ofthe holder and Fig. 6 is a section on the line Fig. 5.

The framework of themachineis designated by 3, said frame being of the proper shape to support the operative parts of the device and preferably having thev apertured projection 4 extending therefrom, by means of which the device may be hung up when not in use.

The frame 3 includes the usual tubular por- 5o tion 5, in which the driver 6 reciprocates, as

described in my copending applications,Serial No. 34,877, filed October 30, 1900, and Serial No. 40,080, filed December 17, 1900.

The rotary hopper 6 containing the nails or tacks to be used delivers the same to the raceway 7, and the tacks are fed one by one from the raceway into position underneath a the end of the driver by the reciprocating pickoff S, these parts being preferably of the same construction as the corresponding parts in my above-mentioned applications. In this embodiment of myinvention the driver-recipro;

eating mechanism comprises a plate or disk:

9, mounted on a suitable shaft 10, supported in .the frame and having projecting there from an eccentric lug 11,'Whicl1engages a vgroove 12 in a cross-piece 13, rigidly secured to the stem of the driver 6, said stem passing at its upper end through Aa suitable bearing 1'5, carried by the frame. As the shaft l10 is rotated it will be evident that the driver will be reciprocated to drive'thetacks or nails.

- The driver-reciprocating mechanism is normally held inactive, but may be clutched to a continuously-rotatingl-shaft 16 when it is desired to operate'thesame. The said shaft 16 is supported in suitable bearings in the frame of the machine and will'have connected thereto the'ilexible shafting 17, sol that the machine may be moved to any desired position during its operation.

The shaft 10 and the shaft 16 are connected Y together by what I have'called al one-revo* lution clutch device-11.`e.,a' clutch device which when rendered active to clutch the two shafts together will be automatically thrown out of engagement after the shafts have made the single revolution. y This clutch device is illustrated as comprising the clutch memberv 18, fast on the shaft 16, and the cooperating clutch member 19, slidably mounted upon the shaft 10, but connected'thereto so as to rotate therewith, said clutch member 1,9 having the usual projections 20', whichmay be made to engage either corresponding projections (not shown) on the clutch member 18 or may be received in suitable recesses in the clutch member 1S, as desired. The clutch member 19 is peripherally grooved, as shown, and said grooves receive pins 20, projecting inwardly from the arms of the forked clutch-operating lever 21, which is suitably mounted at 22 on the frame of the machine. The lower end of the clutch-operating lever 2l is normally engaged by a latch 24, said latch operating to hold the clutch member 19 in apositiou shown in Fig. 1--t`. e., disengaged from the clutch member 18. Suitable means hereinafter described and which are operated upon by the work when it is brought into operative position serve to disengage the latch 24 from the lower end of the lever 21, and when this occurs the spring 25 throws the clutch member 1S) into engagement with the clutch member 18, thereby locking the shafts l0 and 16 to gether. The rotation of shaft 16 is now communicated to shaft 10, and the driver 0 will be reciprocated by means of the pin 11. To throw the clutch out of engagement after the shaft has made one revolution, I have provided the cam 26, which is fast upon the shaft 10 and which engages a roll 27 upon one end of the pivoted lever 28, the other end of said lever having pivoted thereto the latch 24, as illustrated. As the cam 26 rotates the roll 27 drops off from the rise thereof, thus allowing the latch-carrying lever 28 to be swung into the position shown iu dotted lines, Fig. 4, under the iniiucnce of a suitable spring 30. lVhen this occurs, the end of the latch 24 is carried under the end of the clutch-operating lever 21, so that the shoulder 34 on said latch engages the pointed end of the said clutch-operating lever, the latch being held in this position by means of a spring As the shaft 10 completes its reciprocation the rise of the cam 26 passes under the roll 27 and swings the lever 28 into the position shown in Fig. l, and the shouldered latch 24 carried thereby operates to simultaneously turn the clutch-operating lever 21 to cause the clutch members to be disengaged. The driver-reciprocating mechanism now stops, although the shaft 16 is continuously rotated.

Preferably I will provide a suitable tension device 40, which engages the back side of the disk 9, said tension device operating to overcome the inertia of the parts and cause the disk 9 to stop as soon as the clutch members are disengaged. The tension device may be of any suitable construction; but I have herein illustrated one comprising a pad having a stem 41 slidably mounted in the frame 3, the said pad being yieldingly held against the face of the disk by a spring 42. To release the latch 24 when the work is brought into operative position, I preferably make the nose 50 of my machine vertically movable in the end of the tubular portion 5 of the frame and connect to said nose the shank 5l, which runs longitudinally of the said tubular portion and is guided thereby in any suitable way. The upper end of the shank 51 is bent at right angles, said right-angled portion 52 being curved around the tubular portion 5 and seated in a suitable parti-annular recess therein, and connected to said right-angled portion is the offset in position to engage the arm 54, integral with the latch 24. The nose 50 is held in its depressed or lowest position byany suitable means, such as a springpressed plunger 56, seated in a suitable recess in the frame and bearing against the upperend of the shank 5l. When now the work is brought underneath the nose of the machine and pressed against the same, the upward movement of the nose will carry with it the offset portion 53, which by engaging the arm 54 of the latch will turn the same about its pivot 55 and release it from the end of the clutch-operating lever 21. The spring 25 operates to throw together the clutch member, as above described, and the driver will be reciprocated once, when the clutch members will be disengaged, as described.

Preferably the end of the arm 54 will have pivoted thereto a detent 60, which is freely movable in one direction, but is limited in its upward movement by a suitable stop (31. This detent allows the offset 53 to descend without giving motion to the latch 24.

Suitable means are provided whereby the hopper lnay be rotated directly :from the con tinuously driven shaft 1G, and the hopperrotating mechanism is of such a character that it may be disengaged when the raceway has been filled with tacks. shaft 1G is a swinging frame 70, carrying the counter-shaft 71, to which are rigidly secured the gears 72 and 73. The gear 72 meshes with a gear 74, fast upon the shaft 10, while the gear 73 is so positioned as to be adapted to mesh with gear-teeth 75 on the periphery of the hopper G. When the frame is in the position shown in Fig. 2, the gears 73 and are in mesh, and the rotation of the shaft 16 will be communicated to the hopper. NVheu it is no longer desired to rotate the hopper, the said frame 70 will be swung into dottedline position,Fig. 2,thereby disengaging gears 73 and 75. The said frame 70 may be held in either desired position by means of a springdetent 7G, carried by the frame 3 and which is adapted to engage one or the other of two recesses 77 in the swinging frame.

Figs. 5`and 6 show my preferred form of clearer which is adapted to prevent the nails from getting lodged on the raceway. As stated above, the hopper 6 is constructed the same as in my copending application, Serial No. 40,080, tiled December 17, 1900, and it has on the interior thereof a series of lifting projections or shelves 80, which lift the nails and deposit them on the apron 8l of the raceway 7. Pivoted to the casting 82,which supports the hopper, as in my copending application, is a clearer 83, shown as a bent lever having an arm 84, adapted to be struck by a series of projections on the hopper as the same rotates, the said projections operating to vibrate the lever about its pivot 88 against the stress or tension of a spring 89. The lower end of the lever is arc-shaped and extends transversely across the raccway, said lower Pivoted upon the IOO IIC

- a clutch, a latch to normally hold said mech anism inactive, a movable nose at the end of end being inclined, as at 86, to correspond to the inclination ofthe raceway, a suiiicient space being left between the lower face of the clearer and the raceway to allow the heads of such nails as are properly positioned to pass. A plurality of notches 87 are cut in the lower face of the clearer, said notches catching any' nails which are improperly deposited upon the raceway and dislodging the same, thus preventing the raceway from becoming clogged. With this construction of clearer a portion of the lower curved end is always in position above the raceway, and such curved end vibrates across the raceway, as will be obvious.

Various changes maybe made in the structure of the device without departing from the spirit of the invention.

xHaving described lmy "inventiomwhat I claim as new, and desire to secure by Letters Patent, isi 1. In a nailing-machine, a driver, a crank device to reciprocate the same,a continuouslyrotating driving member, a clutch between said driving member and crank, aclutch-op- @rating lever, a spring-controlled lever, a

latch pivoted thereto,and engaging the clutch-y operating lever to normally hold said clutch inactive, means operated by the work as it is brought into operative position to trip the latch, means to bring the clutch into action when the latch is tripped whereby the crank is rotated, a cam connected to the crank device and engaging said spring-controlled 1ever, said cam operating to vibrate the lever as the driver reciprocates, and bring the latch f into engagement with the clntch-1ever whereby the clutch is disengaged.

2. In a nailing-machine, a frame having a tubular portion, a driver reciprocating therein, driver-reciprocatin g mechanism including nally of the frame and guided thereby, an oset on said shank adapted to engage and trip thelatch, means to throw the clutch into operation when the latch is tripped and means,

lowed to remain at rest according to the posi-` tion of the swingingtrame.

4. In a nailing-machine, a driver, a raceway to deliver tacks thereto, a continuouslyrotating shaft to operate the'driver,.a rotatable hopper to deliver tacks to the raceway, a gear on the shaft, and gear-teeth on the periphery of the hopper, a swinging frame sup-r ported on the shaft, 'connected gears. carried thereby, one-of said gears' meshing withthe gear on the shaft and the other of said gears adaptedl to mesh'with the gear-teethon the` hopper-when the frame isin one extreme position. l 5. In a nailing-machine, a drivel', a raceway to deliver tacks thereto, a'continuouslyrotating shaft to operate the driver, a rotatable hopper 'to deliver. tacks to the raceway', a gear on the shaft, and gear-teeth on'the' periphery of the hopperya swinging frame supi ported on the shaft, yconnected gearsjcarried thereby, one of said gearsmeshingwith the gear on the shaft and the otherof said gears adapted-tomeshv with the gear-teeth on the hopper, and means to hold said framev either in such' position that-the gearson `the frame and hopper willbe in mesh or in such position that the said gears will be disengaged.-

In testimony ywhereof 1I have signed my nameto this specitication inthe presenceof two subscribingwitnesses.1 n

" f Y Y PERL-EY R. GLASS.

Witnesses: f v

'Louis C.y SMITH GEO. W. GREGORY;

Images