US419914A

US419914A - Leander k

Info

Publication number: US419914A
Authority: US
Publication date: 1890-01-21
Anticipated expiration: 1907-01-21

Description

(N ModeL L K BINGHAM APPARATUS FOR MAKING PRINTERS' ROLLERS.

I No. 419,9 14.

Patented Jan. 21,189()..

///////////////////////////////////////////////l///AA & llmm mm %Nikua Gay 572% %WWW UNITED STATES PATENT OFFICE.

LEANDER K. BINGIIAM, OF NEW Y ORK, N. Y.

APPARATUS FOR MAKING PRINTERS ROLLERS.

SPECIFICATION forming part of Letters Patent No. 419914, dated. January 21, 1890.

Application filed February 15, 1889. Serial No.,299,951. (No model.)

To all whom 'it may concern:

Be it known that I, LEANDER K. BINGHAM, a citizen of the United Stat-es, residing atNew York, in the County of New York and State of New York, have invented certain new and useful Improvements in Apparatus for Making Printers Rollers; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference bein had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Figure 1 is a perspective View of one-half of the device, Fig. 2 is a vertical dianietric section showing a roller-stock in position. Fig. 3 is a section of the removable bottom plate. Figs. 4 and 5 are plan views of the roller-stock-supporting spiders.

This invention relates to inprovements in apparatus for making print-ers rollers. In making these rollers eitherasingle-mold tube is used or a number grouped together. The latter plan is employed where the rollers are of small or medium size, so that a number can be manufactured at once; but in making large rollers-such as are used in the presses employed in printing the large newspapers-it is hardly feasible to use the grouped molds, and the single-mold tubes are preferable.

It is the object of this invention to so improve the Construction of these single-mold tubes as to greatly facilitate the making of the rollers and to simplify and shorten the operation of their Construction.

The invention consists in the Construction hereinafter pointed out.

In the annexed drawings, the letter-A indicates an ordinary mold-tube having the open top and bottom ends a a'. The bottom end a' has the eXterior threads a surrounding this tube is the concentric jacket B, there beinga space b between the tube and jacket. Enconpassing the tube A are several diaphragms C, secured to the inner surface of the jacket, these diaphragnshaving the holes c, through which the tube A passes, and the perforations c'. At the topa cap D is screwed upon the jacket B, said cap having a hole d, through which the upper end a of the tube A projects. Around the projecti'g\d a of the tube A are placed the packing e and recessed ring E, the latter fastened to the cap D, and the packing and ring forming a steam and water ti ght joint around the end a, but allowing due movement of the tube A.

Screwed upon the bottom of the jacket B is the base-plate F, having the circumferential flange f and the central hole f', a little larger than the end a' of the tube A, said end extending down within said hole. WVthin this hole and surrounding the tube to which it is screwed is a gland G, its exterior flange resting underneath the bottom of the baseplate F.

Projecting up inside the bottom end a' of the tube A is the circular fiange h of the removable bottom H. This flange h fits snugly against the inner surface of the tube, and within the fiange is a circular rabbet ozr seat h'. From this flange h a rim h extends outwardly to the edge of the flange f. In the upper face of this rim, next to the outer edge of the fiange h, is a recess 7 into which snugly fits the lower end a' of tubeA and the outer part of the gland G. From the rim h the bottom H drops, as at 7 being cupshaped, as shown, there being in its lower face a hole h and to one side an opening h surrounding this bottom l-I is a traveling ring K, held thereto by an annulus Z, secured to said bottom. This ring K has a nozzle Ic, with a bore k' in the plane of the opening h The bottom H is held to the base-plate F by clamps or otherwise. The jacket B has'the steam and water inlet M at the bottom and overfiow N at the top and the trunnions O.

WVhen the roller-stock P is put into the mold, it is centered by the spiders 13 p' above and below, the arms 19 of the latter resting on the seat h', and the lower end of the rollerstock protruding through the hole h in the bottom I-I.

The device is turned down and the rollerstock P inserted, the upper spider being -in place on the stock. The renovable bottom H, with the spider p' -in place, is slipped on the end of the stock coming through the hole h and is fastened to the base-plate F. This removable bottom thus acts as a bung or stoppen The ring K is turned so as to close the opening h the device is turned into vertical position, and steam is let into it IOO through the inlet M, the overflow N being open. After the mold is sufficiently heated the steam is shut off. The nozzle 70 is connected to a composition-supply pipe leading from a suitable source of supply, and the noz- Zle is turned until the bore 75' registers with the opening h The composition, being nnder due pressure, rises within the mold-tube A, surrounding the roller-stock P. As soon as sufficient composition has been admitted the nozzle Ic is turned so as to close the opening h Water is then let in through the inlet M, the overflow N being open. The water rises, fills the jacket B around the tube A, and passes out through the overfiow N. A constant current of Water is thus maintained through the device, which quickly cools and sets the composition. As soon as the roller is formed the Water is let out at M, the stopper or bottom removed, and the completed roller withdrawn from the mold.

In an application of even date herewith, Serial No. 299,950, I have shown and described a group of mold-tubes to which the broad invention is applied. In the present case I only Iu claim the specific device herein shown. the other application is claimed the broad invention of a molding apparatus provided at its bottom with an inlet communicating With the lower end of the mold and having a ring provided with a nozzle, whereby the composition may be admitted into the inlet, or the latter may be closed.

Having described my invention, what I claim is- 1. An apparatus for making a single printers roller, consisting of the mold-tube A, the jacket B, having the trunnions O O, the inlet M, and overflow N, there being a space b 'between the tube and the jacket, the removable bottom H, having the opening h the traveling ring Z around the bottom H, and having the nozzle 75, as set forth.

2. The conbination of the tube, its surrounding jacket, and the base-plate of the latter, with the removable bottom having the flange and seat within the tube and the lower spider resting on said seat, as set forth.

In testimony Whereof I affix my signature in presence of two witnesses.

LEANDER K. BINGHAM. Witnesses:

THos. IIOUGHTON, M. DORIAN.