USRE7014E - Improvement in nailing-machines for bootb and shoes - Google Patents

Description

4 Sheets-Sheet "1.- G. McKAY & H. P. FAIRFIELD.

-NAILING-MCHINES FO-R BOOTS AND SHOES. m No. 7,014. v I [lll'essued Mrch 28,1876r 4Sheets-Sheet2. G. MCKAY & H. P. FAIRFIELD. Y

NAILING-MACHINES FOR BOOTS AND SHOES. No, 7,014, Reissued March 28, 187.67.

. 4 Sheets-Sheet 3. G. llcKAY l. H. P. FAIRFIELD. NAILING-IADBII'ES FOR BUOTS .LND SHOE l NL 7,014, Ressuad latch 2,8., 1876.

- GORDON MOKAY,'OF CAMBRIDGE, AND RADLEY P. FAIRFIELD,

PATENT OFFICE or Bos'roN,

MASSACHUSETTS, ASSIGNORS TO GORDON MOKAY.

iwlPRoilEmem-r m NiLme-MAci-nnss Fon sooTs AND sHoEs.

peeieatloh forming part of Letten Patent No. 155,962, dated October 13, 1874 reissue No. 7,014, dated March 28, 1876; application filed March 13, 1876.

Toall whom it may concern v Be it known that we, GORDON MGKAY, of

Uambridge, Middlesex county, and RADLEY P. FAIRFIELD, of Boston, Suffolk county, all in the State of Massachusetts, have invented certain Improvements in Nailing-Machines and we do hereby declare that the following, taken in connection with the drawings which accompany and form part of this specification, is a description of our invention snficient to enable those skilled in the art to practice it.

Heretofore/the nail used in nailing-machines has usually been cut in the machine to the length required by the thickness of the particular parts to be united by it, such nail being sometimes cut from a continuous wire, and sometimes from a continuous or ribbonlike plate; butin the present invention the nails ere formed of different lengths prior to entering the machine, and with or without heads, and are placed in separate receptacles attached to the machine, from which they are transferred 'to position to be driven, and the sole and upper are united by metal fastenings, each corresponding in length to the thickness of parts to be united by it.

This invention' consists, primarily, in the combination, in a nailing-machine and with its nail tube and driver, of nail-receptaclestwo or more-adapted to receive and support separate nails of different lengths, to be used iu different portions of the stock, according to the length of nail required.

The drawing represents the lpartof the ma.r chine which directly 'embodies the organization and details of organization embracing our invention.,

Figure 1 shows the'mechanism in front elevation. Fig.` 2 is a side view thereof; Fig. 3 isan opposite side elevation. Fig. 4 is a'plan of' the nail receiving and transferring mechanism. Fig. 5 is a reverse plan of the salue. (Seen in the direction of the arrow in Fig. 2.)

Two pillar-plates,a b, and their stands constitute the stationary framework of the niachine, and sustain in suitable stationarybearings the driving-shaft c. The driver-bar dworks within the tubes, extended through the pillar-plates, and is provided at its lower end on the lever entering a cam-groove, k, cut'in the side ofthecam-wheel l on the driving-shaft, as in United States Letters Patent No. 76,150. The nail-tube, each time it is lifted by the lever h, raises the nail-'tube foot above the surface of the shoe to a. determined distance, while at each descent thereof it rests upon the surface of the shoe, at whatever height such surface may be, thereby calipering the thiol:-

ness ot' the parts to be nailed between the nail-tube foot and the work-support, the latter beingv always in `a iixed stationary position when the nail-tube' foot descends upon it. By

these devices we are enabled to supply nails in varying length as the vary in thickness. l The driver-bar is fastened at its upper end to an arm, m, extending from an arm, n, of a lever, o, whose other arm, p, has a roll or-pin extending from it into a cam-groove,- q, ofa cam-wheel, r, on the driving-shaft c. 'lhe bar dis directly fastened to the arm m, or through an intervening connection, as seen in the draw ing. In the'interveningconnection a supplemen'tary bar and tripping mechanism are used, so that the driver-bar, ns it desccnds,'is stopped when the bottom of the driver-bar meets the upper surface ot' the work-or, in other words, when the driver has driven the nail through, so that the outer end ofthe nail and the outer surface of the shoe areush.

This tripping mechanism has already been describedin au application for a patent made parts to be nailed or to be mad'e by us, and need-not herein further alluded to.

The nail-tube e, below the bottom-pillan plate, has a \fertical arm, Vs, which extends; around a 'carrier or box, t, through` and'- by'. which the nails of di'erent lengths are .snpported and are transferred from the nail-re -ceptacles to the nail-tube, the tube s extending through the pillar-plate into the arm, which has a passage for the driver, and ihenceinto and through a vertical passage made throng-h y I line of the driver-tube e.

' lower` pillar-plate, a

connection cylindrical parts or rings.

the nail-carrier, and thence into-'the nail-tube foot, the nail-passage .beingthrfmgh the topy of the carrier and the side, andthenee into the nail-tube foot, the passage The nail-carrier t is fixed on the foot of a vertiealshaft, u, extending through a bearing in the arm s, vand also through a bearing in the bottom pillar-plate, in which latter bearing the shaft is made movable vertically, Vwhile it is made rotative in bothbearin'gs. 'On the side of this carrier t, opposite the nailtube, l which are herein shown asstationary. These receptacles may contain nails of various lengths, placed in them vin'aecordauce with the length of the respective nails to be used. The nail-receptacles converge toward the nailbox, and preferably descend toward it, as seen The nail-box shaft u has xed up.

in Fig. 8. on its upper end a wheel, w, upon which winds a chain, m, connected to the bottom of a lever, y', by a suitable rod, z. This lever has its fulcrum at its upper end, as seen vat a2, and between its upper end and the rod z it has a pinl or roll extending into a cam-groove, b2, in one face of a cam-wheel, c2, xed ont-he drivingshaft. The chain-wheelis made with a groove and 'flanges that allowfthe chain to slip vertically without running off the wheel, and a guide, d, may be used' to keep the chain and rod in position. After a nail is driven and before the shoe tobe nailed is fed' forward, the nail-tube and box are raised t0 permit` free movement of the shoe', and the nailtube thrown 'down by the lever h after the feed o'f the shoe, stops at the point where it strikes the upper surface of the upper sole, such point nein g higher or lower, accordingly as the parts to be united are more or less thick. This leaves the nail-carrier, which moves vertically with the nail-tube, more or less near to the bottom of the lower pillar-plate, and through the position ot' the box, with relation to the nail of greater or less the nail-receptacle, the Y for leffecting the result being as follows: The box orcarrief t is formed in two ln the outer ring f2 is a vertical slot, g2, extending through the ring,vand yto the outer surface of the inner ring, in which surface is made a vertical nailearrying groove, h", that forms a part of the nail-tube, when the parts are in position to bring the groove into 'line -with the nail-tube. Whenthe carrier is in position ,tobring the slotand groove opposite the nail-receptacles, (the slot being open through to the groove) a leu gth is taken from Asuitable spring or nger, @I2-,presses a nailv fronrfone` of the receptacles through into the nail-receiving grooveh2 of :the carrier. The nailhavinglbeen thus placed, the shaft u is vturned,'-briinzing the nail-groove hz and its nail into vertical line 7with the nail-tube above,

' andthe nail-tube foot below,`suitable devices holding the parts in relative position for the being in the axial l is a series of vertical"nail-receptacles, o,

action of the mechanism in receiving a'nail, and in' transferring it to vposition where it is received, and tolrpositiou'` when the nail is driven.

The mechanism herein shown for selecting from the nail-receptacles a nail corresponding mostA nearly to the thickness of the material, audits operation, sas follows: On theuuder side of theehuis-wheel wis aseries-of steps, k2, differing from one another iii-height as the nails used in nailing vary in length. Freferably this variation should b'e one-sixteenth of an inch at each nail-trough, and the horizontal distances of the-steps are so arranged that when the stepped wheel w is brought over the nail-receptacles v the vertical lines ofthe steps and the nail-receptacles will` correspondv radially.

Thechain which is worked bythe cam c, revolves the wheel w in one direction, while it is 'moved in the'other direction 'by the coiled spring l. Thusits rotation, by means of the spring, may be arrested in any position, or when the groove y is ope posite any of the nail-troughs fv. There is a stop, m, fixed to the piste a, against which one of the steps, k, strikes when the outer carrier ring fis rotated by thecoiled spring, and the height of the wheel w determines which ofthe steps shall arrest the rotation ot and thev the wheel w, and also of the carrier t, height of the wheel w is determined by thickness of the stock through the tube f.

The upper rim of the outer ring f2 of the carrier hasnotches-fn cut in it, corresponding radially with the nail-receptacles o and the steps'l?.

the

rod q2, pushes the V-shaped end fr" of the slidingpiece into one of the notches n, in the rim of the carrier,v after the nail-chamber h is placed to receive the nail, and this brings the slot g opposite the nail-carrying groove h2. In order that this groove h may pass by the nails presented by the troughs o,

is stopped by the a nail4 is .required outside ring f2 of the nail-carrier isallowed,

to-move a little over the inner cylinder, the amount of the motion being` regulated by the pin and slot t2, and when this pin isvat either end ofthe slot, the groove hz being closed, the nail-carrier will pass by the rst four nailsv in the case supposed without taking a nail; then, when arrested opposite the fifth nailtrough, the piece o2z adjusts the opening -g2 and admits a nail, and the rotation of the carrier, returning to the driver, closes the opening y and retains the nail 'in the carrier. There is a spring, i2, that is carried by the rotation of the flange m2, through the action of the pin u in the slot o2, and lwhich is controlled by the friction-pad wz. This spring, being elevated and depressed with theliail- A sliding piece, o, worked bya projection on the cam l, through the lever p and' that intervene between the driver and the nail-trough,

trough or receptacle, it must carrier, is so adjusted in height that it 'will pass over the tops of the intervening nails, and stop at the one opposite the slot g2, when than isin pdxinion to lmive lthe nail. ThisV spring passes back of the nail to be select-ed, and, as the slot gz is opened, pushes the nail into the groove h?.

Where nails are to be used having enlarged heads the spring i should be placed below th`e\ nail-troughs and made to extend upward, and the nails, supported by their heads on the inclined iianges of the troughs, may be left with their lower ends projecting or exposed beyond the sides of the nail troughs, so that the spring i, entering between the nail next the nail-carrier and the next one back of it, will, as it passes them, press each one toward the nail carrier; but the opening g2 being closed, (until after it has been placed in nosition to take the proper nail,) onlyr the rig-if'U one will be taken into the groove k.

In this machine we use the horn, for supporting the shoe, described in other United States patents, or the shoe may be held on a last and we use also an automatic-feed like the one described in United States Letters Patent No. 36,163.\

We claim- Y 1. In a nailing-machine, the combination, with the nail tube and driver, of nail-receptacles adapted to receive and support separate nails of different lengths.

2. A series ofvnail-receptacles adapted to sustain nails of diiferent lengths, and with or without heads, in combination with a carrier.

lengths, in combination with a nail tube and driver, and with mechanism to present the nails singly to the nail-tube in line with the driver, substan tially as described.

4. The nail tube and driver and receptacles to contain separate nails of different lengths, in combination withv mechanism adapted t0 selectthe nails to be driven, according to the thickness of the stock to be united, substantially as described. 5. The combination of the inner and outer rings of the nail-carrier with the notched flange and the piece o2, to open the receptacle for the nail after it is in the proper position t0 receive the nail, and close it when passing the nail-troughs in either direction, substantially ascdescribed. 6. A reciprocating nail-carrier, in combination with steps k2, governed as to their posif tion according to the thickncss'of the-stock, and adapted to regulate the movement of the carrier with relation to the nai1-receptacles and nail tube and driver, substantially-as described.

GORDON MCKAY.

HADLEY P. FAIRFIELD.

Witnesses:

FRANK F. STANLEY,

FRED. C. SHEPARD.

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