US1479148A - Packing - Google Patents

Description

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l. E. MASTEN PACKING original Filed Aug. 4 1920 W/TNESS eaaaa .aa r, ieaa natten ananas CHARIII I. E. MASTIN, OF MIDLAND PARK, NEW JEESEY.

Panama.

original application med August t,

' ber 5, 1921.

Toall whom 'it may concern:

Be it known that I, CHARLES I. E. MASTIN,

a cit'izen of the United States, residing atV Midland Park, in the county of Bergen and State of New Jersey, have invented certain new and useful Improvements in Backings, of which the following is a specifi'caation.

This invention relates to packing materials, and 'particularly packing tmaterials formed elongated and used for purposes where one of the packed parts moves relatively to the other, as a piston rod inwits gland, and it is therefore necessary or desirableto provide the packing with means to resist wear or other undesirable results incident to such movement. My object is to rovide an elongated packing-which is wel adapted for use, for example, as a packing of the particular kind above indicated and which will have a high de ee of flexibility,` so that it may beW enter in packing relation to the parts to be packed with the greatest possible facility. A further object is to improve, especially by simplifying, the art of manufacturi-ng elongated packings, whether having wear-reresistingV means or not.

This apfplication is a division of my ap" plication or Patent No. 1,473,597.

The drawing illustrates, in

Figure 1 m method of formin the packing, the condition of the materia employed belng shown at two difierent stages in the method; f

Figure` 2 one of the pieces produced by a severing Operation performed in plane 2-2 in Fig-1; and' Figure 3 the said piece after compressing thesame in a vulcanizing mold.

lln the illustrated embodiment e designates a plurality of flexible cores arranged parallel to and in longitudinal contact with eachpother, each core consisting of a fabric sheet impregnated, coated or otherwise treated with rubber and then rolled up from 4 one edge to the other in a compact mass or 1920, Serial NO. 431,146.

erial No. 520,197.

Divided and this application file Decemcomposed of material more yielding than I arranged as explained with reference to the cores, aflsheet of suitable material, as fabric h impregnated, coated or otherwise treated with rubber, is wrapped around the mass formed. It will be noted that, on account of the salience (convexity) presented by each core to the other, there will be formed opposite crevices when they are assembled as described. The constituents of the mass are adhesively joined together due to the presence of rabber therein.

Then the mass is severed in a plane indicated by 2-2 in'Fig. 1, i. e., between the two cores, producing two packing pieces, one of which is shown 'in Fig. 2. This leaves bent or arched wear-resisting wires or wire pieces i embedded in each piece, the ends of which are exposed at the working face j of the piece; it also leaves edge-portions on the piece which are spaced from the pressure producing a closing-up of the' crevices Vas the result of its being exerted substantially parallel with the plane of severing as well as in a direction peri pendiculaf to said plane and compressing thepiece into a compact mass so as to insure the integrity and stability of the whole and leaving the working face' la thereof an uninterrupted surface. Figure 3 shows the vulcanized and compressed product.

Heving thus fully described m invention, what I claim as new and esire to secure by Letters Patent is z- 1. The method of forming simultaneously two elongated packings each having a longitudinal working face composed in part of material which consists in forming an elongated mass whose constituents are adhesively joined together and including coils arranged around a common axis extending longitudinally of the mass and side by side and alternating ones of Which are composed of wear-resisting material and the remainder of material more yielding than the wear-resisting material, and then severing the mass lengthwise in a plane bisecting the coils.

2. The method of forming simultaneously two elongated packings each having a longitudinal working face composed in part of Wear-resisting material and in part of ma-` terial more yielding than the wear-resisting material Which consists in forming an elongated mass whose constituents are adhesively joined together and including a pair of cores arranged side by side and substantially parallel and coils arranged transversely around said cores side by side and alternating ones of Which are composed of `wear-resisting material and the remainder of material more yielding thanthe wear-resisting material, and then severing the mass in a plane between the two cores.

3. The method of lforming an elongated packing Which consists in wrapping flexible 'material transversely around two elongated' cores placed side by side and parallel and one of which is composed of compressible material and'has a longitudinal salient face presented to the other and forming there- With opposite longitudinal crevices, one of said materials containing rubber, then severing the Wrapped fiexible material in a plane between the two cores 'to form two elongated pieces, and then subjecting the piece containing` the core With the salient face to heat and simultaneously to compression in a direction substantially parallel With the plane of severing, whereby to close up the half-crevices left in said piece.

4. A packing including a body of yielding' material having a working,r face, and bent wear-resisting wires embedded in the body and each having both ends thereof exposed at said face.

5. A packing including a body of yielding material having a working face, and arched Wear-resisting Wires embedded in the body and each having both ends thereof `exposed at said face.

6. A packing including an elongated body of yielding material having a longithe Wires.

In testiinonv Whereof I afii my 1 nature.

CHARLES I. E. MAgTIN.

rtions of said body being interposed between

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