US763927A

US763927A - Nailing-machine.

Info

Publication number: US763927A
Application number: US15866103A
Authority: US
Inventors: Charles F Pym
Original assignee: KRENTLER BROTHERS Co
Current assignee: KRENTLER BROTHERS Co
Priority date: 1903-05-25
Filing date: 1903-05-25
Publication date: 1904-06-28
Anticipated expiration: 1921-06-28

Description

No. 763,927. PATENTED JUNE 28, 1904. C. F. PYM.

NAILING MACHINE.

APPLICATION FILED MAY 26. 1903,. N0 MODEL. 3 SHEETS-SHEET 1.

lull lll No; 763,927- PATENTED JUNE ZB, 1904.

O. F. PYM.

NAILING MACHINE.

APPLICATION FILED MAY 25. 1903.

3 SHEETS-SHEET 2.

N0 MODEL.

WITNESSES m: NOFW$ PETERS o0. vnoTo-Ln'uu WASNINGTON, u. c.

4 0 9 1 no 2 E N U TU D E T N E T A P NAILING MACHINE.

APPLICATION rum) MAY 25. 1903 N0 MODEL.

'IIIIII 1. V VFW T 013 WITNESSES 7'? UNITED STATES i Patented June 28, 1904. i

PATENT FFICE.

CHARLES F. PYM, OF ESSEX, CANADA, ASSIGNOR OF ONE-HALF TO KRENTLER BROTHERS COMPANY, OF DETROIT, MTCHIGAN.

NAILING-IVIACHINE.

SPECIFICATION forming part of Letters Patent No. 763,927, dated June 28, 1904.

Application filed May 25, 1903.

To all Ill/1107771 it may concern.-

able others skilled in the art to which it pertains to make and use the invention, reference which form a part of this specification,

ment in the devices employed in connection with the hopper and the nail-chute leading from the hopper to the hammer of that class of nailing-machines in which the nails are deposited in a mass in a hopper from which there leads a nail-chute to and under the ham mer of the machine and in which the nails after being so deposited are automatically ar-g ranged in a longline in the nail-chute that leads from the hopper to the hammer.

In the drawings, Figure 1 is a side eleva- Fig. 2 is a front eleva- Fig. 3 is a sectional elevation showing Fig. 4

tion of the machine. tion. the nail-hopper and the nail-chute. shows a section across the hopper. Fig. 5 is a detail showing the connection of the nail chute and hopper. Fig. 6 is a section across the nail-chute near the entrance end thereof. Fig. 7 is a perspective of the hopper with the cover of the fixed part thereof thrown back.

Fig. 8 is a side view of the finger which de- I taches from the line of tacks the one to be driven, holds back the line, and delivers the selected tack under the hammer. Fig. 9 is a horizontal section of the same. Fig. 10 is a perspective of the same.

The entire machine is supported on a pedestal A, which supports the parts of a lastingmachine.

hammer and lower end of the nail-chute 2.) Above that part which pertains especially to the lasting-machine on a suitable supportingbracket 3 is a nail-holding hopper, one part of which, 1, is stationary and another part of which, 5, is fixed to a rotating shaft 6, that (Seen immediately adjacent to the 1 Serial No. 158,661. (No model.)

is actuated by a screw 8 and worm-wheel 7,

Be it known that 1, CHARLES F. PYM, a sub-Z ject of the King of Great Britain, residingat- Essex, county of Essex, Province of Ontario, Canada, have invented a certain new and use; ful Improvement in Nailing-Machines; and I declare the following to be a full, clear, andexact description of the same, such as will enand these are connected by achain of gearing to themain drive-wheel 9, on the shaft of which there is a cam 10, that actuates the hammer-handle 11. .This invention does not relate to these parts of the machine, but solely to the means of arranging the nails which are put in the hopper 5 and placing them in a chute through which they slide and from which they are delivered to the hammer 11. being had to the accompanying drawings,

The rotating part 5 of the hopper is pro- 3 vided on its inner surface with vanes 5*, which This invention relates to nailing-machines. The ob ect of the inventlon is an improvecatch and carry up and drop thev nails that are placed in the hopper. The nails are dropped in quantities onthe face of

plates

12 and 13, whose surfaces are warped, but converge to a long and narrow opening into which project the upper ends 14: and 15 of the side bars of the chute 2. The upper ends of the side bars which form this chute lead through the walls of the fixed part 4 of the hopper into the cavity within the hopper and are located beneath the opening between the warped surfaces of the two.

plates

12 and 13. Between the side bars of the race is a deep narrow passage wide enough to take the body of a nail, but so narrow that the head of the nail willnot sink into it. I

The two side bars mane 15 are covered by a plate 16, that does not extend entirely to the end of the bars, but reaches into the hopper only for a short distance, leaving the most of the included ends of the side bars uncovered. The plate 16 extends along the bars outside the hopper for a distance and is then supplemented by another cover-plate 17. The coverplate 16 is not fixed, but is arranged to reciprocate. The cover-plate 17 is fixed to the side bars of the race. At the joint between 16 and 17 each of the parts extends half-way over the passage between the bars and half-way over the heads of any nailswhich may be traveling along the passage, so that all nails in the passage under the main part of the coverplate 16 are covered thereby, all nails that are traveling along the passage covered by the plate 17 are covered thereby, and all nails in transit that have not fully escaped from un' der the plate 16 and have not fully entered under the plate 17 are partially covered by one or the other of the two plates.

The plate 16 is reciprocated by a lever 18, pivoted to a bracket 19 and actuated by a pitman 20, that reciprocates through an opening in the fixed part 4: of the hopper and is itself actuated by a cam 21 on the shaft 6 and is retracted by a spring 22, that reaches from the lower end of the lever 18 to the fixed part 1 of the hopper. The end of the lever 18 engages in a socket 2 on the face of cover-plate 16, and the reciprocation 0f the cover-plate 16 causes the nails that have entered the chute to travel regularly along it. The pitman 20 is provided with a yoke 201, that reaches over a multiple-toothed cam 21 on shaft 6. A holding-stud 203, with friction-roll thereon, prevents the yoke from lifting out of place.

It is not intended that the plate 16 should bear strongly against any of the nail-heads. Its action has more the effect of keeping the nails at right angles to the faces on which the 'heads rest, because from the force of gravity the point of the nail tends to drop and tends to force the forward edge of the head of the nail outward and slightly upward, causing it to bear against the face of the cover-plate, and the cover-plate having a reciprocating motion gives to the nail while in this position a slight push, tending to straighten it and causing it to slide freely on its course and to force it sufficiently to keep the nails which have already entered under the cover-plate 17 in motion.

Many more nails are lifted and thrown over by the vanes 5 than can be received in the passage between the side bars of the chute. Those which are not received drop to the bottom of the hopper and are again lifted and thrown over. WVhen the nails reach the bottom end of the chute, the forward one of them comes to rest against a reciprocatory finger 27, held in a reciprocating arm 28. The finger 27 slides or can slide in a socket at the front end of the arm 28. It is normally held out by spring 29, against which it can yield in case the front end of the finger 27 strikes an imperfect nail or similar impediment. The finger is normally held against either the nail in the hole 30 or against the hammer that is in the hole 30 by a leaf-spring 31. The front end of the finger 27 is wedge-shaped, so that when the arm 28 is retracted and the point of the finger withdrawn from over the nail-passage and the finger is again thrust across the nail-passage the extreme point of the finger enters between the nail which is now close up against the hammer and the next succeeding nail, and the wedge shape of the point of the finger causes the finger to swing against the tension of the spring 31, and this continues so long as the hammer remains in the nailchannel 30. WVhen the hammer is next thrown upward, the tension of the spring 31 causes the finger 27 to push the nail 181 into the nailhole 30, through which it is forced by the hammer at its next stroke, while the finger retracts preparatory to make its next forward movement and separate the next succeeding nail from those behind it. The front end of the finger 27 is forked and the upper-member of the fork slightly longer than the lower end. In the chute, at the passage where the finger crosses the chute, there is left a part of the metal of each of the side pieces to engage between the

forks

271 and 272 of the finger, and these

parts

273 and 274 form side guards for the body of the nail and prevent the nail from swinging into the opening that crosses the chute. With this construction short nails may be used-so short that they will otherwise be liable to swing into the opening and be troublesome. The forward end of the leaf-spring 31 is bent over to form a short hook 34:, that engages in a notch 35 across the finger 27, and the spring 31 lies parallel with the main part of the slide 33 and, together with the sliding part 33, forms a socket into which the otherwise loose finger 27 is inserted. The finger 27 thus has a motion due to the reciprocation of the arm 28, a possible reciprocatory motion independent of the arm 28 against the spring 29, and a swinging motion across the line of reciprocatory motion.

What I claim is- 1. An isolating-finger for nail-driving machines having in combination a reciprocatory arm provided with a socket in the end thereof, a spring in said socket, a finger-holder engaging in said socket against said spring, a finger engaging against the side of said holder and provided with a notch and a hooked leafspring secured to the holder and engaging by means of its hook in said notch, substantially as described.

2. An isolating-finger for nail-driving machines, comprising in combination a reciprocatory arm, a finger-holder yieldingly held to the end of said arm, a finger carried by said holder, a hooked leaf-spring secured to the holder engaging the finger with side pressure and holding it in place on the holder, substantially as described.

3. In a nailing-machine, in combination with means for arranging nails in a line and with a hammer, an isolating device comprising a reciprocatory arm, a yielding finger-holder carried at the end thereof, a finger carried by said holder, a hooked leaf-spring secured to the holder and engaging the finger to prevent independent reciprocatory motion of finger and holder and allow anoscillatory motion of the finger, substantially as described.

4. In a nailing-machine, in combination with means for arranging nails in a line and with means for driving an isolated nail, an isolating device comprising a reciprocatory arm provided with a socket in the end thereof, a spring in said socket, a finger-holder held. in said socket and adapted to yield along its longitudinal axis, a finger and a spring-hook holding the finger to the finger-holder, substantially as described.

5. In a nailing-machine, in combination with a nail-chute and means for dropping nails into the end thereof, a forcing means consisting of a reciprocatory part covering the chute in part, a fixed part covering another part of the chute, the reciprocatory part and the fixed part lapping, and at the lap each part extending a part of the way over the chute, whereby there is provision for confining the nails in the chute While passing from the reciprocatory part to the fixed part, substantially as clescribed.

6. In a nailing-machine, the combination of a hopper, a nail-chute, a rotary nail-lifter, guides in the hopper, a fixed cover over part of said chute, a reciprocatory cover over another part of said chute, means for producing reciprocation of part of said cover, each of said cover parts being provided with a part that extends partly over the chute and extends along the middle line thereof, substantially as described.

7. An isolating-finger for nail-driving machines, comprising in combination a reciprocatory arm, a finger-holder held to yield longitudinally of said arm, a finger carried by said holder, a leaf-spring arranged to hold the finger in place with respect to the holder and to allow a side yield to said finger, substantially as described. 1

In testimony whereof I sign this specification in the presence of two witnesses.

CHARLES PYM.