US1176710A - Case-covering machine. - Google Patents

Description

W. P. DEVINE.

CASE COVERlNG MACHINE.

APPLICATION FILED FEB.&.19\3.

1,176,? 1 O. Patented Mar. 21, 1916.

WITNESSES: INVENTOR l .W WILLIAM F DEVINE emjs 60W By H1 H1 5 WWW ATTORNEYS THE COLUMBIA PLANCIGRAPH .60., WASHINGTON, o. c

UNITE STATES PATENT OFFICE,

WILLIAM: P. DEVINE, OF BOSTON, MASSACHUSETTS, ASSIGNOR T0 AMERICAN OPTICAL COMPANY, OF SOUTHBRIDGE, MASSAC SETTS.

HUSETTS, A CORPORATION OF I /IASSACHU- CASE-COVERING MACHINE.

Patented Mar. 21, 1916.

Application filed February 1, 1913. Serial No. 745,599.

To all whom it may concern:

Be it known that I, \VILLIAM I. Dnvrnn, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Case-Covering Machines, of which the following is a speciiication.

My invention relates to improvements in case covering machines and refers particularly to that form of machine illustrated in the patent drawings of my Patent No. 1,0193% granted January 7 1913.

One of the objects of the present invention is the provision, in a machine of this character, of improved means for wiping over he edge portions of the covering material employed, which wipers shall also serve as detents to retain the case in position on the die of the machine until the covering material has been satisfactorily secured thereto.

A further object of my invention is the provision in conjunction with a resiliently upported die block as illustrated, of improved means for automatically locking the same in depressed position when desired and also of means for controlling the rise of the die.

Other objects and advantages of my invention should be readily apparent by reference to the accompanying drawings taken in connection with the following specification and it will be understood that I may make any modification in the specific details and construction shown and described within the scope of the appended claims without departing from or exceeding the spirit of my invention.

Figure I represents a side elevation of a machine constructed in accordance with and embodying my invention. Fig. II represents a sectional view on the line IIII of Fig. I, and Fig. III represents a view partially in section at right angles to Fig. II.

In the drawings, in which similar characters of reference are employed throughout to denote corresponding parts, the numeral 1 designates the base of my machine having rising therefrom the standard 2 which slidably supports and guides the plunger member 3, which may be actuated by any suitable mechanism, the particular form of actuating mechanism shown comprising the toggles 4, controlling lever 5 and returning spring 6, but any other well known means may be employed to impart reciprocating motion to the plunger 3. Disposed directly beneath the plunger is the die base 7 having the central recess 8 in which is slidably supported the die block 9 shaped to fit the curvature of the article to be covered, said die block resting upon the springs 10 which resiliently support the same and having depending thercfrom the threaded lug 11 on which is adjustably mounted the washer 12 and nut 13, said washer being adapted to bear against a portion of the base 1 and adjustment of the nut controlling the height to which the die 9 may be raised by action of the springs 10.

To automatically lock the die in depressed position as the same is forced downward by the action of the plunger I have employed the slidably mounted rod 1 L which has a reduced portion 15 normally engaged in the passage 16 of the die block, a spring 17 tend ing to longitudinally shift the locking bar to force the enlarged portion thereof into the passage 16 whereby the die will be held in depressed position, as should be readily understood by reference to the drawings. A releasing lever 18 is pivoted to the slide bar 1 1 and has a handle portion on one end, the other end being adapted to engage the base 1 whereby rocking of said lever will withdraw the enlarged portion from the passage and thus release the die.

Slidably mounted on the upper face of the block '7 are the wipers 19 which may be actuated by any desired mechanism, but are so mounted as to project but slightly over the edge of the aperture or passage 8 in the block 7.

In the operation of my machine the covering material is coated with a suitable adhesive and placed adhesive face upward on the die 9. The article to be covered is then mounted on the lower end of the plunger 3 where it may be held in any suitable manner, 1

as by the hooks 20, or else laid on the cover ing material. Depression of the plunger will then force the article to be covered tightly against the covering material and thus cause the material to adhere thereto.

I have shown and described my machine as employed in covering eyeglass cases although it will, of course, be understood that it may be used for any kindred purpose. In covering eyeglass cases or the like it is cusand desirable that a portion be in ned and secured to the inside of the case, t is for this purpose that my wipers 19 are employed. The plunger being depressed and securely holding the die and article to covered in depressed position, I shift my wipe l9 inr-Jard, these wipers being so u project over the edge of covered without engaging With the wipers in this po on the plunger 3 is th 1 raised out of engagement with the ar le being covered. is the plunger so raised the case or aricle being covered brought into contact the wipers which engage the edge of and hold the same downward, pulla: 'ay from the hooks 20 which are so u ed as to readily release the said an mounted to jus nclo bein At the same time that the wipers loosen n arti le from the plunger they engage the upstan' ding covering material around the f the rticlc and crimp the same inthe plunger is again deit will pass just within the space incloset by the wipers and will bear upon said in 'ardly crnnpcd covering material to sey press said material against the inside of the article to cause it to adhere thereto. The plunger having performed this function is again r ised and the covering operation is completed, the handle 18 being shifted to release the die and the wipers being Withdrawn to permit the removal of the article.

If desired and to insure best folding in of the edges of the covering material after the plunger has been raised and with the wipers 19 in operative position I may shift the handle 18 to move the locking bar 14 and permit the die 9 to rise, when the springs 10 will force the covering material at the edge of the case tightly against the wipers and in sure a satisfactory folding down of the material at this point. The plunger 3 being again depressed then serves to tightly fold and press the turned in material against the upper face of the article to be covered.

From the foregoing description taken in connection with the accompanying drawings the construction and operation of my improved article covering machine should be readily apparent and it will be seen that I have provided a simple, efficient and satisfactory machine which embodies a single reciprocating plunger serving to first press the article against the covering material and then to afterward press the edges of the covering material against the interior of the article, the wiper serving to bend inward the edges of said material and also to prevent upward movement of the article with the plunger.

1 claim:

1. A machine for covering eyeglass cases comprising a yieldable die on which the covering material is supported, a one-piece plunger for cooperation with said die, said plunger being adapted to clamp the article to be covered into engagement with the covering material, and means arranged to lie within the path of movement of the article to be covered when the plunger is in a lowered position to limit upward movement of the article when the plunger is raised for turning in the marginal edges of the cover ing, said plunger being of a size to extend over the inturned edges of the covering to fold down said edges and press them against the upper face of the article being covered.

2. A machine for covering eyeglass cases comprising a yieldable die over which the covering material is arranged, a one-piece plunger for cotiperation with said die, a locking bar for securing the die in depressed position when engaged by the plunger, said plunger being of a size to extend over the inturned edges of the covering, and means for cooperation with the yieldable die for turning in the marginal edges of the covering, said means being arranged to lie within the path of movement of the article when the die is rising after having been released by the locking bar.

3. A machine for covering eyeglass cases comprising a yieldable die on which the covering material is supported, a one-piece plunger for cooperation with said die, said plunger being of a size to extend over the in turned edges of the covering material, means arranged to lie within the path of movement of the article when the plunger is in a lowered position to limit upward movement of the article when the plunger is raised, and means to lock said die against movement upon raising of said plunger, the plunger being adapted to be a second time depressed to press the inturned edges of the covering material against the upper face of the article to be covered, to secure said edges in position, substantially as described.

4. A machine for covering eyeglass cases comprising a yieldable die on which the covering material is supported, a one-piece plunger for cooperation with said die, said plunger being adapted to clamp the article to be covered into engagement with the covering material, means arranged to lie within the path of movement of the article when the plunger is in a lowered position to limit upward movement of the article when the plunger is raised, means to lock said die against movement upon raising of the plunger, and means whereby the die may be released after the plunger has been raised.

5. In a case covering machine, the combination with a movable die and a plunger, said plunger adapted to support the article to be covered, of means arranged to lie within the path of movement of the article to be covered, and outside the path of movement of the plunger for releasing the article from the plunger and turning in the marginal edges of the covering, said means being adapted to limit upward movement of the article, said plunger being of a size to overlap the said inturned edges of the covering and being adapted to be a second time depressed to press said inturned edges against the exposed face of the article to be covered.

6. In a case covering machine, the combi nation with a yieldable depressible die adapted to receive the work, of a plunger for cooperation therewith, means for automatically locking the die in depressed position when actuated by the plunger, means for engaging the article to be covered to limit the upward movement of the article and die when the locking means are released, and adjustable means for varying the upward limit of movement of the die.

7. In a case covering machine, the combination with a yieldable die and a plunger for depressing the die, of Wipers adapted to engage the article to be covered When on the die to limit the upward movement of the die and article, and adjustable means for controlling the movement of the die and article to be covered in the direction of the wipers.

8. In a case covering machine, the combination with a base and a die mounted there in, of yieldable means for forcing the die upward, a plunger for depressing the die and article to be covered, wipers on the base adapted to be projected in the way of the article to be covered, and adjustable means for limiting the pressure of the die on the article to be covered in the direction of the wipers.

In testimony whereof I aflix my signature in presence of two witnesses.

WM. P. DEVINE. Witnesses \VM. P. DEVINE, Jr., THOMAS LONG.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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