US640999A - Lasting-machine. - Google Patents

Description

No. 640,999. Patented Jan. 9, I900. W. H. DORMAN.

LASTING MACHINE. (Application filed June 19, 1899.)

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No. 640,999. Patented Jan. 9, I900.

W. H. DURMAN.

LASTING MACHINE.

(Application filed June 19, 1899) (No Model.) 5 Sheets-Shaet 2.

No. 640,999. Patented Jan. 9, i900. D 'w. H. DORMAN.

LASTING MACHINE.

(Application filed June 19, 1899.) (No Model. 5 Sheets-8heet 3.

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No. 640,999. Patented Jan. 9, I900.

W. H. DURMAN.

LASTING MACHINE.

(Application filed June 19, 1899.) (No Model'.) 5 Sheets$heet 4.

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wire STATES PATENT FFICE.

\VILLIAM HENRY DORMAN, OF STAFFORD, ENGLAND.

LASTlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 640,999, dated January 9, 1906.

Application filed June 19 1899. Serial No. 721,094:- (No model.)

To aZZ whom it may concern:

Be it known that 1, WILLIAM HENRY Don- MAN, a subject of the Queen of Great Britain, residing at Stafford, England, have invented new and useful Improvements in Lasting-Machines for Boots and Shoes, of which the following is a specification.

This invention relates to improvements in lasting-machines intended for use on what is known as welted work, the improved machines having two tack-cylinders for supplying either of two lengths of tacks to the hammer, the descent of which is regulated to suit the tack being driven.

In the accompanying drawings, Figure 1 is a side view of the head of a machine made according to the invention. Fig. 2 is a front view thereof. Fig. 3 is a section on the line 3 3, Fig. 1. Fig. 4 is a sectional plan showing the tack-cylinders. Fig. 5 is a section of one of the tack-cylinders, showing the clearingwheel. Fig. 6 is a sectional front View of the same. Fig. 7 is a side elevation. Fig. Sis a rear elevation, and Fig. 9 a horizontal section, of the tack-cylinders. Figs. 10 and 11 are Views of the wiper. Figs. 12, 13, and 14 are views of the nose-piece. Figs. 15 and 16 are views of the upper pincer-jaw. Figs. 17 and 18 are views of the cone-clutch pulleys. Fig. 19 is a view of the hammer-bar slide. Fig. 20 is a front view of an improved foot. Fig. 21

is a side view of the same. Fig. 22 is a section of the lower part. Fig. 23 shows the upper rack and pinion. Fig. 24 is a plan of an improved back gage, and Fig. 25 is a sectional elevation of the same.

The figures are drawn to a varying scale. a is the main frame of the machine,-and b b are the two cylinders, the said cylinders being carried in a frame b which is free to swing slightly from side to side on a vertical pivot b carried by the main frame a of the machine. This side movement is sufficient to allow either of the raceways b or b to be brought into the central position, so as to feed the carrier b with tacks, the said carrier being of ordinary construction and operated in the usual manner.

0 is a handle whereby the operator moves the cylinders l) b and raceways b b into and out of operation. When this handle 0 stands vertically upward, the cylinder 7; and raceway I) are in operation, and when the said handle hangs vertically downward, the other cylinder and raceway are brought into operation. The handle cis mounted on a pivot c" in a fixed piece 0 and is furnished with a crank-pin 0 which carries a cylindrical sliding die 0 Fig. 9, free to slide vertically in an arm 0 attached to the cylinder-frame 6 with which it swings. The cylindrical form of the die 0 allows of a slight turning move ment and prevents binding as the arm 0 swings.

When the machine is at rest, the carrier 1) occupies an intermediate position between the hammer A and the raceways 19 19 so that the swinging of these latter is not interfered with by the carrier.

The end of each raceway is closed by a springshutter cl, the said shutters being mounted on vertical pivots d d and held closed by springs d 01 The carrier b opens one of these shutters and takes a tack from the raceway at every reciprocation. The other shutter-that is to say, the one not in operationremains closed by its spring and prevents tacks falling out of the end of its raceway.

The cylinders are driven from the main shaft B of the machine by pulleys e e", carrying bands 6 a which pass over guide-pulleys e e e, and e The pulleys e .and e are loose on the shaft B and are formed with hollow cones ff, adapted to engage a central double cone f which is fast on the driv ing-shaft. The said pulleys e and e are also free to slide a little endwise on the shaft 13 and are put into and out of engagement with the central cone f bya forked level-f which is mounted on a pivot A second lever g is mounted on the pivot f and its upper end engages by means of a pin g and die g in a jaw g having a slide-bar 9 which can be moved forward, so as to interpose its front end g between the leather washers g onthe hammer-bar A and the face g of the frame a, on which these washers strike when the hammer-bar descends. The descent of the hammer is thus reduced by the amount of the thickness of the end 9 of the slide-bar 9 so that the tack-heads are left standing up somei What from the shoe. This happens when the forward by the operator, as shown in Fig. 18. When the handle g is pushed back, (see Fig. 17,) the slide-bar g is drawn backward clear of the washers g and the hammer A descends to its full extent, so as to drive the tack-heads home. At the same time that the bar g is withdrawn the pin on the lever g engages with the fork f so as to release the pulley e from the cone f and stop the revolution of the cylinder 6. The same movement engages the pulleye, so as to drive the other cylinder 6. The slide-bar g and pulleys e and e are held in either of their extreme positions bya spring h, which is connected to the lever g and to a lever h. The object of this lever h is to enlarge the angle of action of the spring 71.. Itis mounted on a pivot 71 and its jaw end 71 engages the pin g of the lever g. A gap or notch f is formed in the lever f to allow of the greater movement required by the slidebar 9 than that given to the cone-pulleys e e, as it is obvious that the bar g requires to move through a distance at least equal to the diameters of the washers 9 so that its front end shall either be completely under the washers or entirely clear of them. The said front end of this bar g has a gap or notch g (see Fig. 19,) so as to clear the hammerbar.

The raceways b and b are vibrated by rappers t' 2', which are mounted on pivots t" 1' in a fixed frame d They are operated by pegs i which are carried around by the rotation of the cylinders 19 b. The pegs 2' lift the ends of the rappers against the tension of springs jj, and as they pass release the rappers again, so that their other ends strike upon the studs 70, carried bythe raceways b 19 which are thus vibrated ,the vibrations causing the tacks to descend.

Clearing-wheels Z Z are employed to remove misplaced tacks from the raceways, the said wheels being also operated by pegs Z Z in the cylinders, which pegs engage pieces Z carried on studs m in arms m, the'said arms being mounted loosely on shafts n n, carried in the frame a.

The clearing- Wheels Z l are attached to ratchet-wheels 0 0, loose on the pawl arm bosses or shafts n n, and pawls 0 0 engage the said ratchet-wheels 0 0, the said pawls 0 0 being carried on the studs m m. The pegs Z on the rotation of the cylinder strike the pieces Z Z and move the pawls 0 0, so as to operate the ratchet-Wheels 0 0 and clearingwheels Z l forward a tooth or two. As the pegs l pass the pieces Z springs 0 0 return the arms 'm and pawls 0; but the ratchet and clearing wheels are prevented from returning by spring-pawls 0 0 The shafts n n abut together in the center of the frame n and have teeth n formed at their abutting ends. They are also of larger diameter in the frame a than at the parts where the clearing-wheels Zlare mounted. The reduced ends carrying the clearing-wheels, &c., are shouldered down eccentric to the larger portion, so that by turning the shafts a little (which may be done by means of a pointed instrument operating the teeth 07. the clearing-wheels may be set nearer to or farther from the raceways. When adjusted, the shafts 'n, n are secured by screws pp. The pieces Z may be set so as to feed one or more teeth of the Wheels, as required.

The nose-piece q of the machine, Figs. 12, 13, and 14:, against which the operator holds the boot-upper, is formed with two projections or horns q q, between which the wiper 4, Figs. 10 and 11, is made to come forward and behind which it retires. These horns q facilitate the plaitin g operation at the toe and heel of the boot.

The wiper rhas an open notch r at its front or operating end into which the hammerpoint enters and which is sloped or beveled, as shown, to act as a tack-guide and insure the tack being properly placed and driven in the angle of the outside channel or flange of the insole. The under side of the wiper stands slightly in advance of the under sides of the two horns q, so as to insure its acting efficiently upon the upper of the shoe.

The upper jaw s of the pincers, Figs. 15 and 16, is provided with a curved slot 8 to engage the pin 5 of the pincer-link 8 Fig. 1. By adjusting this pin .9 lengthwise in the slot the pincers are made to grip the upper with more or less closeness, as the nature or thickness of the material may require.

Referring now to the improved foot show in Figs. 20 to 23,15 is the foot proper, the said foot taking upon the insole of the shoe and being serrated, as shown at t, to resist the pulling action of the pincers and wiper. The foot 25 is mounted in a slideway t formed in the lower end of a vertical slide 25 carried in a bracket t attached to the head-frame a. For adjusting the foot 6 horizontally I provide a handle t which is mounted on the shaft 6 of the pinion t engaging a rack i formed on the said foot. The shaft t is mounted in a split bearing t", the parts of which are drawn together upon the shaft by a screw with such pressure that the frictional engagement between the shaft and the hearing will be sufficient to hold the shaft against turning in the bearing under the pressure exerted upon the teeth of pinion t by the rack Hence the foot will be held perfectly rigid and will resist any pressure against it, while its position can be instantly adjusted by the operator by turning the handle i which is longer than the radius of the pinion, and the leverage of which is therefore sufficient to turn the shaft in its bearing. It will thus be seen that the foot will be held at all times rigidly in the position to which it may be adjusted by the handle The vertical slide i may be moved up and down by the operator in the same way by means of a handle a, mounted on the shaft to of a pinion M, which engages teeth 20, formed upon the said slide 2 The bearing a is also split and clamped by the screw a to prevent the slide 25 from being moved by pressure upon the foot t. The slide 25 will thus be held rigidly in any position to which it may be adjusted by the frictional engagement of the bearing a with shaft a, While the slide and foot can be adjusted vertically by means of the handle a, the leverage of which is sufficient to overcome the frictional resistance on the shaft u.

The object of the above-described foot is to provide an arrangement capable of being instantly adjusted by the operator to suit the nature of the work at the moment in hand. The position of the foot sometimes requires one or two adjustments on the same shoe.

The back gage o is mounted on an eccentrically-bored bush 1;, which is cramped by the screw 11 and washer 0 fast upon the fixed stud o carried by the machine-head frame. To set the back gage 2; forward or backward, the screw "0 is slackened, the bush 1) is given a partial turn, and the screw 0 set fast again. With this construction the back gage can be readily set forward or backward to suit the nature of the work in hand.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim isl. Inalastingand nailingmachine,the combination with the main frame, of a laterallyswinging frame connected to the main frame by a vertical pivot, two horizontally-disposed revoluble tack-cylinders having horizontal axes mounted on said swinging frame, mechanism for driving said cylinders, a tack-raceway for each cylinder, carried by said frame, ahandle for operating said swinging frame pivoted to a stationary part of the main frame, and provided with an eccentric projection, and an arm secured to said swinging frame engaging said eccentric projection of the handle, substantially as described.

2. Inalasting and nailing machine,the combination with the main frame, of a'laterallyswinging frame connected thereto by a vertical pivot, two revoluble tack-cylinders carried by said swinging frame and having horizontal axes of rotation, a tack-raceway for each cylinder, a clearing-wheel for each raceway, a ratchet-wheel connected to each clearingwheel, a swinging operating-lever adjacent to each raceway provided with a pawl to engage one of said ratchet-wheels, and with an operating-arm, and a series of projections on each cylinder for engaging said operating-arms to impart motion to said clearing-wheels, substantially as described.

3. In a lasting and nailing machine the combination with a revolving cylinder provided with a raceway, a clearing-wheel for said raceway, loosely mounted upon its shaft, a shaft for said clearing-wheel provided with an eccentric bearing portion, means for rotating said shaft in its bearin g to adjust the clearingwheel toward and from the raceway, and operating devices for rotating said clearing-wheel, substantially as described.

4. In a lasting and nailingmachine the combination with a revolving cylinder provided with a raceway, a clearing-wheel for said raceway, loosely mounted upon its shaft, a shaft for said clearing-wheel provided with an eccentric bearing portion, means for rotating said shaft in its bearing to adjust the clearing-wheel toward and from the raceway, a clamping device for locking said shaft in its adjusted position, a ratchet-wheel operatively connected with said clearing-wheel, a pivoted operating-lever adjacent to said raceway, a pawl carried by said lever and engaging said ratchet-wheel, an adjustable arm carried by said lever, and studs on said. cylinder for engaging said arm to operate said clearing-wheel, substantially as described.

5. In a lasting and nailing machine the combination with two revoluble tack-cylinders, of a driving-shaft, a separate driving-pulley for each cylinder, mounted on the drivingshaft, and clutches for throwing one or the other of said'driving-pulleys into operation, substantially as described.

6. Inalasting and nailing machine the combination with two revoluble tack-cylinders, of a drivingshaft, independent driving-pulleys on said driving-shaft operatively connected with the said cylinders, clutch mechanisms for throwing one or the other of said cylinders into operation, a pivoted shiftinglever operatively connected with said clutch mechanisms, an oscillating pivoted lever operatively connected with said shifting-lever, and a spring connected at one end to said shifting-lever and at the other end to said oscillating lever, substantially as described.

7. In a nailing andlasting machine the combination with the two independently-revoluble tack-cylinders, of a driving-shaft, inde pendent pulleys loosely mounted on said drivin g-shaft and operatively connected each with one of said cylinders, each of said pulleys being provided with a clutch member, clutch members on the driving-shaft adjacent to the clutch members on said pulleys, a pivoted shifting-lever operatively connected to said pulleys for throwing one into and the other out of engagement with the clutch members on the driving-shaft, an oscillating lever operatively connected with said shifting-lever, a spring connecting said shifting-lever and said oscillating lever, the points of connection between said spring and said levers being on the same side of a line connecting the points of pivoting of said levers, substantially as described.

8. In a lasting and nailing machine, the combination with two independently-revoluble tack-cylinders, independent drivingmechanisms therefor, a shifting device for. throwing cheer the other of said cylinders into opera-.

tion, a hammer, a slide-bar adapted to be moved into the path of a part connected with said hammer to arrest the hammer, and operative connections between said slide-bar and said shifting device, whereby when one of said cylinders is thrown into operation said 5 slide-bar will be moved into position to arrest the hammer, and when the other cylinder is thrown into operation said slide-bar will be withdrawn, substantially as described.

9. Inalastingand nailing machine,the com- 10 bination with the hammer, of the nose-piece provided with two horns or projections and having a recess formed between the same, and a movable wiper located in said recess provided with a recess for engaging the hammer, the walls of said recess being beveled, sub- 15' stantially as described.

WILLIAM HENRY DORMAN. Witnesses;

' E. HARKER,

GRAHAM T. 00X.

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