US1349192A - Lasting-machine - Google Patents

Description

lW. A. ELLIASSON. LASTING MACHINE. APPLICATION FILED 1MM. 1918. nsnswfu JAN. 7. |920. 1,349, 1 92, Patented Aug. 10, 1920.

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UNITED Vs'rarlzs PATENT OFFICE.

WILLIAM A. ELIIIASSON, 0F BRIDGEPORT, CONNECTICUT, ASSIGNOR TO HAMEL SHOE MACHINERY COMPANY, A CORPORATION OF MASSACHUSETTS.

Specification of Letters Patent.

LASTING-MACHINE.

Patented A110; 10, 1920.

Application filed January 7, 1918, Serial No. 210,618. Renewed January 7, 1920. Serial No. 350,063.

To all 107mm z? may concern Be it known that I, l/VILLIAM A. ELLrAssoN, a citizen of the United States, residing at Bridgeport, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Lasting-Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to shoe machines and more specifically to improvements in that type of lasting machine disclosed in the patent to Ladd and McFeely, 584,744, June 15, 1897, the present invention being concerncd particularly with the means for swinging and turning the pincer-bar.

In machines of the type specified as heretofore constructed, the desired movements of the pincer-bar have been secured only by the employment of complicated mechanism which is expensive in construction and upkeep, and at the Sametime embodies'certain undesirable structural features.

rIhe present invention therefore comprises mechanism for securing the above movements of the pincer-bar which is relatively simple and cheap to construct, easy to repair and which is positive and reliable in action.

Other objects and advantages of the invention will be set forth more at length in the following detailed description and particularly pointed out in the claims, reference being had to the annexed drawings for a full disclosure thereof and in which Figure 1 is a perspective view of so much of a lasting machine of the above type as is necessary to illustrate the application of the invention thereto, and

Fig. 2 is a sectional detail of one feature of the invention; and Fig. 8 is a detail of va slight modification.

1 and 2 indicate the forward ends of the prongs carried by the usual rotatable supporting shaft employed in this type of machine, said prongs being provided at their forward ends, as indicated at Sand 4, with suitable bearings for a slidable carrier 5, the carrier in the present embodiment being shown as comprising sleeved portions 6 and j 7, it being understood, however, that variousV modifications in the arrangement of this structure may be made without materially affectingfthe scope of the invention. Slidably meunted within the sleeved portions of the carrier 5 is a slide 8, said slide having projecting from its central portion in a forward direction a lug 9, which may be formed integral with the slide or attached thereto in any desired manner, said lug being provided near its central portion with an opening at 10.

Projecting forwardly from the extremities of the sleeve-members 6 and 7 are a pair of abutments 11 and 12, said abutments being provided with openings therein, which openings are alined with the opening 10 in the lug 9. Passing through the several openings in the abutments and the lug is a rod 13, said rod being held within the abutments by suitable nuts upon its outer extremities shown at 14, but passing loosely and freely through the opening 10. Encircling said rod and between the lug and the respective abutments are springs 15, 16. said, springs being herein shown as coiled compression springs arranged to be normally under a slight' degree of compression, and having their opposite ends bearing against the lug and the adjacent abutment. If desired. (see Fig. 8) means may be provided for adjusting the initial tension of the springs, lsuch means comprising, as herein shown. nuts 16 having threaded engagement with the rods 15 and 16 and interposed between the springs and the respective abutments. It will be seen from the above construction that the springs tend to maintain the slide in a position central of the sleeved carrier, that is to say, if the-slide be moved within the sleeves the tendency of the springs is to move the sleeved carrier in the same direction until their central portions are again in alinement, l

At 19 is indicated a rockable shaft. this shaft being supported in the machine frame in the same manner as the corresponding shaft of the patent above referred to, and having fixed upon its forward extremity a curved sector 20. Guided for sliding movement upon the curved surface' of said sector is a member 21. the guides 22 serving to maintain said member 21 in proper relationship to the sector 20, but permitting free sliding movement of Vthe member 21 with respect thereto. At 24 is a lug projecting outwardly from the central portion of the member 21 and having an opening 25 formed therein. 26 is a link havin@f projecting from one end thereof pin 2 said sptituted therefor.

pin engaging with the opening-25A in the lug 24. 28 is a second link having a balland-socket connection at 29 with Vlink 26,v Vand having its opposite end connectedV by mounteda slide-block 32 having a-journalv opening 33 therein. By means of this'construction the lever 30 may be Yadjustably supported for swingingmovement upon Va suitable part of the frame structure, not herein disclosed, the above arrangement being old and fully described in thepatent above referred to. rlhe lower end of the lever 30. is pivotally connected at 34 with theinner extremity of the link 26, movement of the link in a lengthwise direction, thus serving to rock the lever 30 about its pivotal support.

At 35 is indicated a vertically movable rod Vor shaft, which may be provided with any suitable means for moving the same such, for eXample,las is disclosed in Figs. 6 and 7 0f the patent to Gooding and `Ladd 423,922, r'lVIa-rch 25, 1890, although it is to be understood anyv equivalent mechanism under control of the operator may be sub- The upper portion of this rod 35 is offset and provided with a squared portion 36 adapted for sliding movement in a suitable bearing 37, whereby the shaft is prevented from rotating on its Y own axis. Link 26 is provided at 38 with a i slot into which projects a pin 39 carried upon the rod 35. By the above construction it will be evident that vertical movement of the rod 35 will cause a swinging of the linkY ber21fto slide upon the sector 20, and to assume positions either above or below the axis of the shaft 19, upon which said sector is mounted. n

40 indicates the usual pincer-bar employed in machines of this type, said bar being provided at its upper endY with a ball 41, ser-ving as one element of a ball-andlsocket joint, and whereby the baris sup-Y Journaled within Vthe opening 44 and having screw-threaded engagement with the collar 45 isa pin 47 constituting a crankarm, said crank-arm being provided at 48 with a flat bearing surface. 1n assembling the machine the arm 47 is screwed into the collar 45, but is not set up tightly, permitting free turningof the same to-a slight amount in either direction. 49 is a connecting rod having one extremity thereof universally connected with the lever 30, as indicated at the point 50, and having its opposite extremity flattened at 51 for engagement with the bearing surface 48. Crankarm 47 and connecting rod 49k are provided with alined openings for the reception ofpa crankpin 52, hereinshown as in the form of a'bolt, this form of pin, however, not being essential to the invention.

rl`he operation ofthe above mechanism will now be obvious. The pincer-bar 40 being suitably supported and in central vertical position, the slide-member 21 being located centrally of the link 20, upon rocking movement of link through shaft 19 no movement will be imparted to said pincerbar. 1f it rbe desired, however, during the operation of lasting' to cause a side swinging of the pincer-bar upon its bearings V41 the rod 35 is moved either upwardly or downwardly from the central position herein shown, thereby causing the guide-memher 21 to move away from the axis of shaft 19 and along the surface of sector 29 in one or the other direction. A rocking movement of the sector through shaft 19 will thereupon cause a longitudinal movement of link 26 and'therewith of the link 28, the latter link through its connection with the slide 8 producing increased compression in one-orth'e otherv of the springs 15, 16, according to the direction of movement of the link 26. Such added'compression of one of said springs will, through the reaction thereof against the adjacent abutment, cause a sliding movement of the carrier 5 in a direction corresponding to that of the slide 8, thus serving' to swing the bar 40 about its pivotal point 41 and thereby resiliently movingthe pincers to one side-or the other of their central position. iMovement of the rod 35 in a directionopposite to that above indicated will evidently produce a swinging of the pincer-bar in the opposite direction.

1n Vthe above operation it will be A'further noted that upon movement of the ylink 26 either to the left or-right, thelower end of the lever 30 through its connection at 34 to said link will be correspondingly moved, thus swinging theuppe'r end of said lever and through connecting rod 49 and crank 47 producing an oscillation of the pincer-bar 40 about'its own axis, thus causing a turning of the pin'cers for producing the .with respect to the dit, it is clear that a swinging of the lever 30 wili be permitted without causing any binding of the parts connecting 'the sameto bar 40.

While the movements above indicated are old and weil known in this type of machine, such movements have heretofore been carried out by most complicated mechanisms, which, in many cases contain features undesirable from a mechanical standpoint, rendering the machines diflicult to maintain in working order and expensive to build, whereas in the invention herein disclosed, the necessary movements of the pincer-bar are produced by very simple mechanism having few parts, and such as are not liable to become disarranged in operation by reason of wear or rough usage.

While the above is a preferred embodiment of the invention, it is evident that various changes and modifications may be made therein without departing from the essential features thereof, and it is to be understood that all such changes and modiviications as fall within the scope of the appended claims are to be considered as a part thereof.

Having thus now described the invention what 1 claim and desire to secure by Letters l?atent of the United States is 1. In a machine of the class described, in combination, a pincers-bar, a carrier therefor, a slide mounted for reciprocation upon the carrier, means for reciprocating said slide and a pair of compression springs therefor directly interposed between said slide and the carrier for transmitting movement of the slide to the carrier.

2. 1n a lasting machine, in combination, a pincers-bar, a carrier therefor, said carrier comprising a sleeved portion, a slide reciprocable in said sleeved portion, means for reciprocating` the slide, a pair of abutments iixed upon the opposite extremities of said carrier, a lug fixed centrally of said slide, and a pair of compression springs interposed between the respective abutments and said lug.

3. In a lasting machine, in combination, a pincers-bar, a carrier therefor comprising a slide-way, a slide reciprocable in said slideway, means for reciprocating said slide, aV

engaging the openings in the respective abutments, and pair ot springs encircling said rod and interposed between said lug and the respective abutments, and means for adjusting the tensin of said springs.

1l. 1n a machine of the class described having a pincers-bar and a carrier tl `irefor, in combination, a reciprocable slide, means for transmitting movement of said slide to the carrier, and means for reciprocating said slide comprising a rockable sector, a guidedmember slidable thereon, connecting means between said slide and said member, a manually actuated rod and an element having direct connections with said rod and the guided-member respectively whereby movement of the rod serves to adjustably position said member upon the sector.

5. In a machine of the class described a laterally movable pincers-bar and means for moving said bar, said means comprising a rockable sector, a guided-member slidable upon said sector, connections between said member and the pincers-bar, a slidable rod, a pivoted link having one end thereof connected to said member, and a direct connection between said rod and said link, whereby movement of the rod serves to adjustably position said member upon the sector.

6. In a machine for lasting shoes having a laterally movable pincers-bar, in combination, a rockable shaft, a sector centrally mounted upon one extremity thereof, a guided-member slidable upon said sector, and having connection with said bar, a pivot-ally supported link having one end thereof connected to said member and provided with a longitudinal slot, a vertically slidable rod, and a pin carried by said rod and engaging said slot, whereby movement of the rod serves to adjustably position said member upon the sector and to either side of the rockable shaft.

7. In a machine of the class described, in combination, a pincers-bar, means for rotatably supporting the same, and mea-ns for oscillating said bar, said means comprising a rockable lever arm, a connecting-rod, an axially rotatable crank arm carried by said bar, and a crank pin connecting said arm with said rod.

8. 1n a machine for lasting shoeshaving a rotatably supported pincers-bar, in combination, means for oscillating said bar about its axis comprising a crank arm projecting from said bar and having a substantially flat bearing surface, a connecting rod having a face arranged for engagement with said surface, a crank pin for pivotally connecting said arm and rod and means for reciprocating the rod.

9. In a lasting machine, in combination, a universally mounted pincer-bar, and means for oscillating said bar about its axis, said means comprising a pin projecting from said bar and rotatably secured thereto said in constituting a crank arm and a reei rocable connecting rod having pivotal connection with said arm.

l0. In a machine of the class described, in combination, a rotatably supported pincerbar and means for oscillating said bar, said means comprising a pin projecting from said bar and having a rotatable engagement therewith,Y said pin constituting a crank arm vand being provided With a substantially flat bearing surface,' a Connecting rod having one extremity engaging said snrace, a crank pin pivotally connecting said rod with said arm, anda roekable lever member having 15 universal connection With the other extremity of said rod for reciprocating the same and thereby oscillating the bar.

In testimony whereof I-have signed my name to this specification.

WiLLIAM A. ELLiAssoN.

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