US817060A - Hose. - Google Patents

Description

PATENTED APR. 3, 1906. E. T. GREENPIELD. HOSE. APPLICATION FILED APBLZQ. 1905.

j NVENTRI EDWIN r. GnEENFiELD, or MoNTieELLo, NEW YORK.

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Specification of Letters Patent,

Application filed April 24,1905. Serial No. 257,071.`

Patented. April 3, 1096.

To all whom it may cm1/cern.-

Be it known that I, EDWIN T. GREENFIELD, a citizen of the United States, residing at Monticello, county of Sullivan, and State of New York, have made a new and useful lnvention in Hose, of which the following is a specification.

-My inventioil is directed particularly to an improvement 1n means for giving increased strenth to such parts of a hose as are subjected to extreme bending effects, and especially at points where the'same is connected to a coupler, and therefore necessarily subjected to great strain, and will be fully understood by referring to the accompanying drawings, in, which-- Figure 1 illustrates alongitudinal sectional view of a flexible armored hose and a coupling connection, such as is disclosed in a prior application 'filed by me on the 12th day of January, 1905, and bearing Serial N o. 240,7 22, my improvement being applied theretd. Fig. 2 is a transverse sectional view taken through Fig. 1 on the line X X and as seen looking thereat from right to left in the direction of the arrows. Referring to the drawings in detail, in

' `which. like numerals represent like parts at 8, and provided with cylindrical shouldersv wherever used, 1 2 3 represent a flexible hose and the interlocking armor therefor of what is` known in the art as the Greeniield armored hose, disclosed in a prior atent granted to me by the United States Vatent @flics on' the 8th day numbered 746,630.V

6 6 represent half or two-part cou lingrings which are screw-threaded interna ly to conform to the spiral or screw-threaded 4conformation of the armor-strips 2 3, said rings .being provided with a air of lugs or ears l 4,

adapted to receive bo tsl 5 5. Each half or two-part coupling-ring is provided at one end with an internally-projecting shoulder 7, adapted to bear when in locked osition against a ring-sh aped part 9, integra with a connecting-sleeve 10, bell-mouthed, as shown 11 and 13, 12 being a connecting-ring screwthreaded internally and provided extern ally with radially-disposed integral lugs or pins for effecting the manipulation of the ring by a pipe-wrench.

14 1s arkwater-tight gasket adapted to make a water-tight oint between the inner end of the cylindrica shoulder 11 and the abutting end of thecoupling connection 16 of a hysubject-matter of .the before-mentioned of December, 1903 ,and

tion.

. drant, said connection-'being screw-threaded l` The parts so far described constitu-te'they 5LP plication and are-simply shown and described ere .for the purpose of illustrating the improved means of strengthening a hose at the point where it is secured to a coupler or at such point as may be sub`ected to frequent great bending strain. T is means constitutes in the resent instance a flexible sleeve composed o interlocking'metal strips 18 19, similar in all respects to the armor composed of the two strips 2 3, except that of course this sleeve is of proper diameter to fit snugly about the entire armored hose in the manner shown. This two-part coupling-sleeve is provided with externally-disposedYshoulders 23.

20 20 represents a second or supplemental two-part coupling-ring screw-threaded internallll with one ormore threads 24, having the pitc of the spirallydisposed interlockingmetal strips 18 19 and Tprovided each with internally-proj ectingshoulders 22, adapted to grip the corresponding externally-projectingshoulders 23 of the twoart coupllng-ring 6.

21 21 are bolts extendlng through the boltholes in lugsor ears of this second two-part coupling-ring, said bolts being provided with nuts, as clearly shown in Fig. 2.

The parts f the structure are put together as follows: The strengthening-sleeve composed of the interlockingmetal strips 18 19 is `rst screwed into position over the end of the hose a distance substantially equal to the length of the two-part coupling-sleeve. The end of the hose is then forced over theconnectingr sleeve 10 until the -lined thereof abuts iirml against the'ring-shaped part 9 after whichT tlie-tWo-part couplingring is locked in position through the agency of bol ts 5 5 in the manner disclosed in the before-mentioned application and as is perfectly obvious on inspection of the drawings. The second air of two-part coupling-rings is then secure in place, with the internall -projectingshoulders 22 locking against t e eX- ternally-projectingshoulders 23 of the first pair of two-part coupling-rings and with the corresponding screw-threads 24 thereof iirml secured against the outer surface of the flexlble strengthening-sleeve through the agency of thebolts 21 21Y and a corresponding pair of portion IIO nuts, as clearly shown in Fig. 2 of the drawl ings. Such a strengthening-sleeve by reason of its interlocking relation to the interlocking armor and the hose gives material strength to the same at the point of connection with the coupler, and to such an extent that as I have ascertained there is never any rupture at this point no matter what may be the bending stress put u on the parts.

Although I haves own and described my improvement as applicable to armored hose, I do not limit it specifically to this use, as obviously it may be used with flexible hose generally, the essence of my invention lying in the provision of a ilexible metallic strengthening-sleeve constructed of spirally-disposed inter ocking strips secured about a ilexible, hose through the agency of interlocking or clamping parts, and my claims are designed to be oi such sco e as to include such structural devices, altliough the preferred Jform is that which is hereinbefore described, and illustrated in the accom anying drawings.

Having thus describe my invention, What I claim, and desire to secure by Letters Patent of the United States, is-

1. A ilexible armored hose provided with coupling means for securing it to a point of attachment; in combination With a flexible metal sleeve surrounding the armor and a second coupler Which binds the sleeve to the armor and connects it to the first-named coupler. 2. A hose having an armor of interlocking flexible metallic strips; in combination with a strengthening-sleeve composed of similar surrounding interlocking metallic strips, said sleeve being located at a point Where the hose is subjected to frequent severe bendin strain. 3. Aflexiblehosehavingaspirallyisposed armor; in combination With a coupler embracing a connecting-sleeve and a two-part coupling-ring screw-threaded internally; together with a spirally-disposed strengthening-sleeve surrounding the armor and a second two-part coupler adapted to secure the sleeve around the armor and to the firstnamed coupler.

In testimony whereof I have signed my name to this`s`peciiication in the presence of two subscribing Witnesses.

EDWIN T. GREENFIELD.

Witnesses:

C. J. KINTNER, M. T. KEATING.

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