US552110A

US552110A - emery

Info

Publication number: US552110A
Authority: US
Publication date: 1895-12-31
Anticipated expiration: 1912-12-31

Description

(No Model.) 5 Sheets-Sheet 1.

W. H. EMERY 8: V. P. BUCK.

MACHINE FOR COVERING WEBBING FOR BOOT STRAPS.

No. 552,110. Patented Dec. 31, 1895.-

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MACHINE FOR COVERING WEBBING FOR BOOT STRAPS.

No. 552,110. Patentd 13%.31, 1895.

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(No Model.) 5 Sheets-Sheet 3. W. H. BMERY 85 V. P. BUCK.

MACHINE FOR COVERING WEBBING FOR BOOT STRAPS. N0 552,110. Patented De0.31, 1895.

5 Sheets.-Sheet 4.

(No Model.)

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MAGHINE FOR COVERING WEBBING FOR BOOT STRAPS.

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Patented Dec. 31, 1895.

UNITED STATES FFICE.

PATENT I IVILLIAM H. EMERY AND VERTRUDE P. BUCK, OF AUBURN, MAINE; SAID 'EMERY ASSIGNOR TO SAID BUCK.

MACHINE FORCOVERING WEBBING FOR BOOT-STRAPS.

SPECIFICATION forming part of Letters Patent No. 552,110, dated December 31, 1895. Application filed November 16, 1894. Serial No. 529,074. (No model.)

To all whom, it may concern:

Be it known that we, VILLIAM H. EMERY and VERTRUDE P. BUCK, citizens of the United States, residing at Auburn, in the county of Androscoggin and State of Maine, have invented a new and useful Improvement in Machines for Covering Vebbing for Boot- Straps, of which the following is a specification.

Our invention relates to that class of ma chines which are used to cover boot and shoe straps with paper for the purpose of protecting them from soiling in the course of manu facture.

In the machine described in United States Patent No. 239,434, issued to Charles Boyce March 29, 1881, the webbing used for the pulled into its proper position.

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straps is inclosed in a continuous paper tube which completely covers it. The webbing and tubes are then cut into suitable length for the straps, and that part of the paper tube which covers so much of the ends of each strap as is inserted in the shoe is torn off. This plan makes necessary a great waste of coveringpaper.

In this our invention we fold the paper covering about the webbing in a somewhat similar way, but instead of inclosing the strap in a continuous tube we only cover so much of one end as equals in length the covered part of the finished strap. \Ve then cut ofi the strap and its partial covering, pull the cover into its proper place and then fold the finished strap.

In the accompanying drawings, Figure l is a side elevation showing the complete machine. Fig. 2 is a detail of Fig. 1. Fig. 3 is a plan corresponding to Fig. 1 Fig. 4 is an end elevation showing only the parts near the left end of Fig. 1. Fig. 5 shows certain details of the other end of Fig. 1. Fig. 6 is a full-size sectional elevation of the feedingrolls and adjacent parts, the vertical sectional plane passing through the central line of the strap-channel. Fig. 7 is a section through the paper-folder and webbing-feeder. Fig. 8 shows the strap and partial cover as first out 01f. Fig. 9 shows the same with the cover Fig. 10 shows the combination of parts which pulls the covering into the position shown in Fig. 9. Fig.

11 shows certain details in sectional elevation as seen from the rear of Fig. 1, the section passing through the central line of the strapchannel.

In the drawings, A is the frame of the machine. v

T is a roll of webbing from which straps are to be made.

N is the roll of paper from which coverings are to be made.

D is the paste-dish, which is only used when it is desired to secure the paper-coverings with paste. This paste is distributed in regular dots by a toothed wheel W, upon which and upon the carrying-roll R the roll of paper N rests.

H is the folding-guide for the covering-paper. The curved end of II over which the paper first passes is made of thin elastic metal, so as to yield to the sudden pull of the feedroll.

The construction of the guide H corre sponds in other respects to that of those in general use for similar purposes, care being taken to give it such proportions that the strap-webbing will slip back and forth easily in its paper cover.

P is the webbing-pusher. This is a strip of thin steel roughened upon its lower side and bent and formed into teeth at its hinder end.

P receives motion from the crank 0 through the connecting-rod c.

In Fig. 2, O, C and P are shown directly above their places in Fig. 1.

' In Fig. 7, P is shown in full-size cross-sea tion.

R is the lower feedroll, and R the upper feed-roll, which is pressed down upon R by the spring S and a similar one (not shown) upon the opposite end of the roll.

R is a rim extending partly around R and acting to lift the roller R clear of the paper and webbing while the pusher P is feeding the webbing independently of the paper. 5

K is a stationary knife over which the web bing and paper are fed forward.

K is a revolving knife that in connection with K shears ofi the straps and their coverings. This revolving knife K derives its motion from the main shaft S to which it is rigidly attached, as shown in Figs. 1 and 3,

and is adjusted to press against the edge of K as it swings by it, as shown in Fig. 6.

V is a grippin g-j aw which is guided to move back and forth in the direction of the straps motion and to slip between the upper side of the strap T, Fig. 9, and its covering N.

V is a second gripping-jaw, which is so pivoted as to move with V and be vertically movable in relation to it.

8 is a spring which acts to close V upon V and make of the two jaws a pair of nippers. The cross-fiutings (shown in Fig. 10) upon the ends of V and V are preferably made to interlock. n is a pin-which projects from the upper gripping-j aw V. NVhen these jaws are pulled back this pin it strikes the upper surface of the wedge c and slides along it until it lifts the spring S and passes above it. lVhen the gripping-jaws V V move forward again the pin n is held up by the spring S and slides along its upper surface until it comes to the notch on, when it drops through and permits the upper jaw V to close upon the lower jaw V.

t is a piece which fills the opening between V and the bottom of the channel in which it slides, and serves as a stop to prevent the strap from being pulled along with its cover.

6 is a stop which prevents the paper cover from moving along by its own inertia after the jaws V V let go of it.

B and R are the folding-rolls between which the covered strap is pushed by the piece of thin metal V which is attached to the rocking arm R that is moved in one direction by the projection n on the cam G and in the other by the coiled spring S The projection n on the cam 0 moves the pushing-piece V down far enough to insure that the paper cover shall slip under the grippingjaws V.

The gripping-j aw V and its connections receives its forward motion from the cam O and is pulled back by the spring 8*.

The revolving knife K is mounted upon the main shaft S. Upon the outer end of this shaft is the driving-pulleyP, upon the other the bevelgear B ,which drives the equal beve1- gear B upon the lower-roll shaft 8*.

WVhen we wish to make use of our invention we put the rolls of webbing and of paper in their places. We then insert the end of the paper from the roll Nin the folding-guide II and pull it along as far as the feed-rolls R R IVe then put the end of the webbing from T under the pusher I and set the machine in motion. As soon as the pusher P has fed the webbing between the feed-rollers R and R R rolls off from the rim R and is pressed upon the webbing and the paper which is folded about it by the springs S S The two rollers then feed ahead the paper and webbing until R lifts R again, when the pusher I pushes the webbing out from the folded paper for a distance equal to the combined length of the two ends which are to proj ect from the paper cover when finished. The

knives K and K now shear off the strap. Immediately thereafter the gripping-jaws V and V shut upon the covering-paper and pull it to its final position. The stop t prevents the webbing from being dragged forward. The stop t prevents the covering from flying ahead when the gripping-j aw V is lifted by the sliding of the pin 42 over the cam C. At this point the projection 41 upon the cam C strikes the rocking arm R and brings down the piece of thin metal V upon the covered webbing, doubling it up and forcin it between the fol ding-rolls R and R, which deliver in into a receptacle placed underneath. 'W hen we wish to fasten the covering with paste we fill the paste-dish D. The toothed wheel IV then distributes it along one edge of the paper in regular dots, and the pressure of the feed- R and R seals the paper at these spots and holds it folded.

Having now fully described our invention, what we claim, and desire to secure by Letters Patent, is

1. In a machine for covering webbing for boot straps the combination of a paper folder which is adapted to continuously fold a strip of paper about a strip of webbing, means of simultaneously feeding the paper and the webbing, means of feeding the webbing independently of the paper and means of cutting off the webbing and paper, all as and for the purpose set forth.

2. In a machine for covering webbing for boot straps the combination of means of simultaneously feeding forward a strip of web bing and a paper covering therefor, means of feeding the webbing while the paper is held stationary, shears for cutting off the paper covered webbing, and nippers which pull the paper covering into its final position, all timed to act in series substantially as set forth.-

3. In a machine for covering webbing for boot straps the combination wi th a pair of nippers having a back and forth motion of a pin projecting from the side of the upper jaw, a cam over which the pin slides at the end of its backward trip, a spring pressing upon the cam which rises to let the pin backward and catches and holds it up when moving forward, and a slot in the spring through which the pin drops at the end of its forward motion, all as set forth.

4:. In a machine for covering webbing for boot straps the combination of a pair of intermittently acting feed rolls which feed forward both the webbing and its covering, means of feeding forward the webbing while the covering is held stationary, shears which cut off the webbing and its partial covering, nippers which pull the covering into its proper place, a vibrating folder which presses down the partially covered strap, and a pair of feeding rolls which finish the folding and pressing, all acting together in series as and for the purpose specified.

5. The combination of a pair of feed rolls, one or more springs acting to press them together, a pair of rims which extendpartly around the lower feed roll, and a webbing pusher which is timed to act when the rolls are separated by the rims, all as and for the purpose set forth.

6. In a machine for covering webbing for boot straps a principal cam shaft, feeding devices which act intermittently and feed the webbing and its covering at different rates, a pair of bevel gears which transmit motion from the principal shaft to these feeding devices, a revolving knife mounted upon the principal shaft, a fixed knife against which the revolving knife cuts all as set forth.

7. The combination of a principal cam shaft, a pair of sliding spring nippers which seize the partial covering, a cam upon the principal shaft which imparts a forward motion to the nippers, and a spring which acts to pull them back; all as set forth.

8. The combination of a pair of folding rolls, a rock shaft, a plate mounted thereon which presses the strap between the folding rolls, a cam having projections which impart motion to the rock shaft in one direction, and a spring which reacts against the cam.

9. In a machine for covering webbing for boot straps the combination of a paste dish, a paste wheel on which one edge of the roll of covering paper rests, a folding guide, a pair 0 WILLIAM H. EMERY. VERTRUDE P. BUCK.

\Vitnesses:

FoREs'r E. LUDDEN, WILLIAM E. LUDDEN.