US1231889A - Machine for applying peripheral bands. - Google Patents

Description

H. C. HERR.

MACHINE FOR APPLYING PERIPHERAL BANDS.

APPLICATlON FILED AUG.29.1913. A A 9 Patented July 3, 1917.

4 SHEETSSHEET I.

H. C. HERR.

MACHINE FOR APPLYING PERIPHERAL BANDS.

APPLICATION FILED AUG.29, I913- Patented July 3, 1917.

4- SHEETS-SHEET 2.

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a Z flag/0 Patented July 3, 1917.

4 SHEETS-SHEET 3.

H. C. HERR.

MACHINE FOR APPLYING PERIPHERAL BANDS.

APPLICATION FILED AUG.29. I913.

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H. C. HERB.

MACHINE FOR APPLYING PERIPHERAL BANDS.

APPLICATION FILED AUG.29. 1913.

1 %31 ,MQD Patented July 3, 1917.

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'7 7" fla -HEB ///4 I- of barrel heads.

UNTTED STATEN PATENT UFFTQE.

HENRY C. HERB, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO SOUTH SIDE TRUST GOlVIPANY,

TRUSTEE, PITTSSBURGI-I, PENNSYL- VANIA, A CORPORATION OF PENNSYLVANIA.

MACHINE FOR APPLYING PERIPHERAL BANDS.

Specification of Letters Patent.

Patented July 9, i917.

Application filed August 29, 1913. Serial No. 787,391.

To all whom it may concern.

Be it known that I, IIENRY C. HERB, a citizen of the United States of America, residing at Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Machines for Applying Peripheral Bands, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to machines for-applying peripheral bands and is more particularly designed for use in the manufacture It is the object of the invention to provide means for first tightly drawing the band about the body to be bound thereby, and then to secure the overlapping ends of the band to each other so as to retain them in clamping position. To this end the invention consists in the peculiar construction and arrangement of the mechanism as hereinafter set forth.

In the drawings:

Figure 1 is a plan view of the machine;

Fig. 2 is a cross section on line 22 Fig. 1;

Fig. 3 is a side elevation of the machine;

Fig. L is a longitudinal section on line M Fig. 1; and

Fig. 5 is a perspective view showing the product of the machine.

The specific article which is operated. upon by my machine is a barrel head formed of a plurality of board sections A B C, which together form a complete circle and which are bound by a peripheral band B. To secure the head sections to this band said sections are provided with V-shaped peripheral groove or eroze therein, while the band or hoop is fashioned with a corresponding V- shaped projection for fitting said eroze and holding the sections from displacement. The bands D are preferably formed by rolling, in order to be of the proper cross section and of a circular form approximating the size of the head, with overlapping end portions. The metal is sufficiently resilient to permit of expansion to engage the head section therewith, after which the parts are in position for operation of the machine.

The machine comprises a bed or table E supported upon suitable standards E, and provided on its top with a circular clamp F for receiving the head with the band loosely in conformity to the general cross section of said hoop or band. At one point, preferably midway of its length, the clamp F is pivotally attached to the table by the pin G, while the opposite ends are provided with pivotal connections H to toggle links I and I mounted upon the table. Secured to the pivots H are rollers H engaging guide slots H in the table, the arrangement being such that when the toggle links are straightened the ends of the clamping band F will be forced toward each other, contracting the circle and tightening the band D. Suflicicnt space is left between the ends of the band F for the overlapping ends of the band D, and in this space is located a clenching or bandsecuring mechanism which will be hereinafter described.

To operate the clamp F, as well as the clenching mechanism, a suitable mechanism is mounted upon the table, preferably on the underside thereof. This, as shown, comprises a drive pulley J directly connected with a pinion J, which latter meshes with a gear wheel K sleeved upon a shaft K having thereon a pair of pinions K and K respectively meshing with gear wheels L and L upon a shaft L and upon opposite sides of the central plane of the machine.

These gear wheels L and L are provided with crank pins engaging rods or links M and M, which at their opposite ends are pivotally attached to rock levers N and N fulcrumed at N beneath the table E. The upper ends of these rock levers extend into slots 0 and O in the table and are con nected by pivotal links 0 and O with sliding blocks P and P engaging slide-ways P on the top of the table. These blocks P and P are in turn pivotally connected with links Q and Q which are centrally pivotally connected to the toggle links I and I, which, as before described, are attached to the ends of the clamping band F. The opposite ends of the toggle links I and I are pivoted to adjustable bearings upon the table, formed by blocks I slidably secured in bearings I and adjustable therein by set-screws I the may be shifted and the clamp F correspondingly adjusted.

The train of mechanism above described is adapted to cause the tightening and loosening of the clamp F whenever movement is imparted to the shaft K from the gear wheel K. The latter is constantly driven by the pulley J and pinion J, but is only intermittently coupled to the shaft K through the operation of a trip clutch K This clutch, which is not shown in detail, is of such a character that when tripped it will couple the wheel K to the shaft K, maintaining the coupling during one complete revolution of the gear wheels L and L, after which the clutch is again released. This revolution of said gear wheels will cause the crank-s and connecting rods M and M to operate the levers LT and N, links O and O sliding blocks P and P and links Q and Q, which will straighten the toggle links I and I and contract the band I about the head and hoop D. The clamping is effected by one-half revolution of the gear wheels L and L, and during the remaining half revolution the parts are moved in the opposite direction, releasing the clamp and expanding it to its normal position.

The clenching mechanism for securing the overlapping ends of the hoop is arranged to operate thereon when the clamp F is contracted and before the releasing of the same. This mechanism, as shown, comprises a lipping punch and die adapted to strike portions of one of the overlapping sections through apertures in the other section and to clench the same, thereby securing said sections from relative movement. In detail, R and R are slidable blocks arranged in the longitudinal central plane of the machine re spectively outside and inside the clamp F 1 and opposite the space between the ends of said clamp. These blocks R and R engaging slideways R on the table, are provided on their undersides with rack sections R which are in mesh with segmental rack sections S upon rock levers S" and S fulerumed upon the frame. The lower ends of these rock levers are provided with rollers S and S which engage a cam wheel S upon the shaft L which cam wheel is so fashioned that different peripheral portions thereof engage with the respective rollers S and S S is a spring for holding the rollers S and S in contactwith the .cam S. The sliding blocks R and R have adjustably secured thereto the punch and clenching members T and T which cooperate with a stationary die member U secured to the table E. Thus during the rotation of the shaft L in the operation of the clamp ing mechanism as previously described, the cam S will actuate the membersT and T. The timing of the operation is such that the punching member T is actuated atthe c0m pletion of the contracting movement of the clamp F, and the punch is so fashioned that it will strike out lips from the two overlapping sections of the hoop D, bending these lips to extend transversely and in a position to be clenched by the subsequent operation of the member R. The whole operation takes place before the clamp F has released its pressure, and thus the band D is prevented from expanding or releasing its pressure upon the head sections.

The complete operation of the machine is as follows: The head sections and hoops D being first assembled by hand, the operator successively places the assembled heads within the clamping band F, which in its normal position is expanded suthciently to rcceive the loose band D. The clutch K is then tripped, preferably by a pedal V connected by the rod V, bell crank lever V rod V and other linkage with the trip rod Upon this rod is a collar \V carrying a roll V which is adapted to engage with a recess in the slide P when the latter is in its normal position, while a spring 7 sleeved upon the rod it, yield-ably holds said roll in engagement with said recess. Thus when the pedal V is depressed the rod W is moved against the tension of the spring W, withdrawing the roll Vi from the recess and alsoreleasing the clutchengaging mechanism which couples the gear wheel K to the shatt K. \Vhen the mechanism is tripped by the pedal V as just described, motion will be imparted from the shaft K and pinions K and K thereon to. the crank gears L and L; and through the links M and M, levers N and N, links 0 and 0*, slides P and P and links Q- and Q, will gradually straighten the toggle links I and I. This will progressively contract the circle of the clamp F, thereby similarly contracting-the band D and causing its overlapping ends, which are in the space between the ends of the clamp F, to slide over each other until the band is in tight contact with the periphery of the head sections. Allthis occurs during the half revolution of gear wheels L and L, and by adjusting the set screws I any desired degree of clamping may be effected. Then the clamp is fully contracted the cam S operates first to cause the punch T 'to perforate the overlapping section of the band D, striking out preferably a pair of tongues or ears therefrom and then through the operation of the clencher T bending over these cars or tongues into a locking engagement. ment of the mechanism will expand the clamp F by the opposite movement of the cranks and intermediate mechanism connected with the toggle linksv I and I, and just at the completion of this reverse operation the recess Vi in the sliding block P will register with the roll W whereupon the spring W will force the trip rod V into position to disengage the clutch K and stop further movement. This completes the cycle and the operator can then remove the completed work and place another head in the clamp F, after which the operation is repeated.

The rollers H engaging the guide slots H serve to cause the contraction of the clamp F by the toggles I and I without undue radial pressure at the pivotal points H. These pivotal points H are also placed a short distance from the ends of the clamp so as to provide projecting nose portions H which are free to turn upon the pivot in conformity to the curvature of the band.

hat I claim as my invention is:

1. A machine for applying peripheral bands, comprising a clamp for surrounding the band, means for operating said clamp to contract and expand the same, and means operating simultaneously with said clamp opera-ting means when said clamp is in contracted position for securing the ends of the band to each other.

2. A machine for applying peripheral bands, comprising continuously moving eontraetible and expansible clamp for surrounding the band, providing a space for the overlapping ends of saidband, and means located in said space for securing said overlappingends to each other.

3. A machine for applying peripheral bands, comprising a segmental contraetible clamp for surrounding the band and body to which it is applied, said clamp providing a space between the opposite ends thereof for the overlapping ends of the band, means operating to alternately contract and eX- pandsaid clamp, and cooperating means for securing the overlapping sections of said band operating when the clamp is in contracted position, said clamp operating means and cooperating means operating simultaneously.

4. A machine for securing peripheral bands, comprising a contractible segmental clamp for surrounding the band and the body to which it is applied, means attached to the ends of said clamp for moving the same toward and from each other, guides for directing the movement of said ends, and means operating simultaneously with said clamp moving means and located between said ends for operating upon the overlapping ends of the band to secure the same to each other in the contracted position of the clamp.

o. A machine for applying peripheral bands, comprising a segmental resilient clamp for surrounding the band and body to which it is applied, a pair of toggle links connected to an end of said clamp, means for straightening said toggle links to contract the clamp, and mechanical means 1ocated adjacent to the end of said clamp for operating upon the overlapping ends of said band to secure the same to each other in the contracted position of the clamp.

6. A machine for applying peripheral bands, comprising a. segmental resilient clamp for surrounding the band and body to which it is applied, a pair of toggle links engaging an end of said clamp for contracting the same about said band and body, and lipping mechanism operating upon the overlapping ends of said band for attaching the same to each other when said clamp is in contracted position.

'7. A machine for applying peripheral bands, comprising a segmental contractible clamp for surrounding the band and body to which it is applied, means connected to the ends of said clamp for moving the same toward and from each other to alternately contract and expand the clamp, and means operating simultaneously upon the overlapping ends of the hand between the ends of said clamp for securing said band ends to each other, said means being timed to operate when the clamp is in contracted position.

8. A machine for applying peripheral bands, comprising a segmental clamp for surrounding the band and body to which it is applied, the ends of said clamp being spaced from each other when in fully contracted position, means for alternately contracting and expanding said clamp, and devices arranged respectively inside and outside said clamp opposite the space between the ends thereof for engaging the overlapping ends of said band and for securing the same to each other.

9. A machine for applying peripheral bands, comprising a table, a segmental clamping ring mounted upon said table, anti-friction rolls attached to the ends of said clamp engaging guide slots in said table, toggle levers also engaging the ends of said clamp for moving the same toward and from each other in contracting and expanding the clamp, devices arranged respectively inside and outside said clamp opposite the space between the ends thereof, for engaging and attaching to each other the overlapping ends of said band, and timed mechanism for operating said toggle links and engaging-means, the latter performing its operation when the clamp is in contracted position.

10. A machine for applying peripheral bands, comprising a table, a segmental clamp mounted thereon, a plurality of parallelly arranged slides upon said table, mech anism for reciprocating said slides in timed sequence, toggle links connected to a pair of said slides and engaging the opposite ends of said clamp to contract and expand the same, and punching and clenching deint vices operated by other of the slides timed to perform their ope 'ations when the clamp is contracted.

11. A machine for applying peripheral bands, comprising an alternately contractible and expansible clamp for surrounding the band and body to which it is applied, mech anism for alternately contracting and expanding said clamp in each eycleoi' operation, means for securing to each other the overlapping ends of said band, operating when the clamp is in contracted position, and an automatic trip operating at the completion of the cycle for disconnecting the actuating mechanism.

12. A machine for applying peripheral bands, comprising a table, a segmental clamp mounted thereon and adapted to surround the band and body to which it is applied, mechanism for alternately contracting and expanding said clamp, including a reciprocatory slide, coacting timed mechanism operating upon the overlapping ends of said band in the contracted position of said clamp to secure the said ends to each other, a trip for causing the movement oi said mechanism, and means actuated by said reciprocatory slide for disengaging said trip at the completion of the cycle.

13. A machine for applying peripheral bands, comprising a table, a segmental clamp mounted on said table, a toggle lever engaging said clamp to contract and expand the same, a mechanically operated recipro- ,catory member for operating said toggle,

and an adjustable bearing for one end of said toggle regulating the position of closing of said clam 14:. A machine for applying peripheral bands, comprising a table, a contractible and expansible clamp mounted on said table for surrounding the band and body to which it is applied, a plurality of parallelly arranged slides upon said table, a rotary shaft beneath said table, crank connections between said shaft and a pair of said slides, toggles operated by said pair of slides for contracting and expanding said clamp, devices for securing the overlapping ends of said band to each other operated by another pair of slides, and cams on said rotatable shaft for controlling and timing the movement of said latter slides.

15. A machine for applying peripheral bands, comprising a table, a clamping ring mounted upon said table, anti-friction rolls secured to the ends of said clamping ring engaging guide slots in said table, mechanical means for moving said ends toward and from each other in contracting and expanding the clamping ring, mechanical means for engaging and securing the overlapping ends of the band to each other, and timed mechanism for operating the contracting and expanding means and the engaging and securing means.

In testimony whereofI anix my signature in presence of two witnesses.

HENRY C. HERB.

Witnesses:

C. C. MORRISON, GEO. N. MONRO.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Iatents,

Washington, D. C.

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