US1288427A - Conveyer. - Google Patents

Description

E. B. KERST & H. BOGATY.

CQNVEYER. APPLICATION FILED MAR. 11, 1918..

1,288,427. Patented Dec.17,1918.

2 SHEETS-SHEET l- JT i. 5 i

E, B. KERsTlsL H. BOGATYJ CONVEYER. APPLIIIJATION FILED MAR-'11, 1918.

2 SHEETS-SHEET 2- Patented Dec.17,1918.

UNITED STATES P TENT OFFICE.

EDGAR .B. KERST, OF PROVIDENCE, RHODE ISLAND, AND HERMAN BOGATY, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNORS T0v THE PHILADELPHIA TEXTILE MACHINERY COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

CONVEYER.

Specification of Letters Patent. Patented Dec. 1'17, 1918.

Application filed March 11, 1918. Serial No. 221,824.

T 0 all whom it may concern:

Be it known that we, EDGAR B. Knnsr, a citizen of the United States,and a resident ofProvidence, Rhode Island, and HERMAN BooA'rY, a citizen of Russia, (having declared his intention of becoming a citizen of the United States,) and a resident of Philadelphia, Pennsylvania, have invented certain Improvements in Conveyers, of which the following is a specification.

Our invention relates to certain improvements in conveyors used )particularly in carrying material to be dried through drying machines and also relates particularly to that type-of conveyer consisting of a series of comparatively long links connected together by transverse pivot pins which support the carrying apron, which is generally made of wire or some perforate material.

The olbject of the present invention is to provide the links with guards which extend over and under the edges of the carrying.

apron so as not only to protect the selvage edge where a wire frame is used, but also to support the apron when comparatively heavy weights are being carried and to prevent material from being blown off of one side of the apron during its passage through the conveyer.

In the accompanying drawings:

Figure 1 is a plan view of a portion of our improved conveyer;

Fig. 2 is y a longitudinal sectional view on the line 2-2, Fig. 1, showing the conveyers passing over a portion of the sprocket wheel;

Fig. 3 is a transverse sectional view on the line 33, Fig. 1;

Fig. 4 is a detached perspective view of one of the links;

Fig. 5 is a detached perspective View of the two guard plates;

Fig. 6 is a plan view of a portion of the conveyer, illustrating a modification of the invention;

Fig. 7 is a transverse sectional View on the line 77, Fig. 6;

. Fig. 8 is a detached perspective view of one ofdthe links, showing the integral guards; an

'tively coarse mesh screen.

Fig. 9 is a view of a modification. l is the conveyer, in the present instance,

having links 2 and 3 of wrought metal arranged in pairs, one set of links alternating with another set on the pivot rods ll, which extend the full width of the conveyer. Between the links 2 and 3 at each side of the conveyer are the supporting wheels 4, which revolve loosely on bushings carried by the links. This is an ordinary form of conveyor chain.

5 is the carrying apron, which extends from one pivot rod 11 to another and, in the present instance, is made of longitudinal and transverse wires forming a compara- The long1tudinal wires of one apron. alternate with those of another apron on the same shaft and as 'the upper guard 7, which extends over the edge of the apron and the lower guard 8, which extends under the edge of the apron, as clearly shown in Fig. 3. These guards are made as shown in Fig. 5 and are spot welded or otherwise secured to the inner link 3. The guards are shorter than the links so as to give the conveyor perfect freedom at the pivot points. The lower guard 8 acts as a support for the edges of the apron between the pivot rods, preventing the sagging of the apron to such an extent as not to interfere with the proper handling of the material, while the upper guard 7 not only protects theselvage edge, but also prevents material 'i'romescaping laterally from the apron as it passes through the drying chamber and also prevents the rubbing of the apron against the stationary guard plates 9 located above the edges of the aprons, as shown in Fig. 3.

The conveyer, in the present instance, travels on angle rails 10. The horizontal portion of the angle rail supports the rods while the vertical portion limits the lateral movement of the conveyer.

In the above description, we have referred to the guards and links as made of sheet metal and the guards secured to the links by spot welding, or other fastening devices. In some instances, however, the guards may form an integral part of the link 3*, as shown in Fig. 9, in which the sheet metal plate is bent to form two guards 7 and 8 In Figs. 6, 7 and 8, we have shown our invention as applied to a conveyer in which the links 2" and 3 are made of malleable iron and the guards 7 and 8 are cast integral with the links.

We claim:

1. The combination in a conveyer, of side links connected together by transverse pivot rods to form an open center chain; a series of aprons mounted on the rods-and of substatially the same length as the links, but free of the links; and upper and lower guards on the links projecting laterally therefrom, one set of guards extending over the edges of the aprons and the other set of guards extending under the edges of the I HDI'OIIS.

The combination in a conveyer, of two sets of links, one set being on one side of the conveyer and the other set being on the opposite side transverse pivot rods'oonnecting the sets of links; aprons made of transverse and longitudinal wires, the longitudinal wires engaging the pivot rods; upper and lower guards secured to the links at each side, one set of guards extending above the edge of the aprons and the other set of guards extending below the edge of the aprons; and stationary guard plates located above the edges of the aprons and extending to a point close to the upper guards of the links so as to prevent air currents blowing material from the aprons, the lower guard preventing the aprons from sagging.

In witness whereof we affix our signatures.

EDGAR B. KERST. HERMAN BOGATY.

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