Патент USA US2128814код для вставки
Aug. 3o, 1988. » D. B. G1511' f 2,128,814 - HOSE Filed Oct. 2l, 1956 fly/7 727 1717 7 y /////// l // ' BY INVENTOIL _Zb//za'äZ ß. 6225/6 ATTORNEY. l_2,128,814 Patented Aug. 30,- 1938 Y - UNITED STATES PATENT- OFFICE .Y . - ‘ - ' ~ ~ 2,128,814 j " nosE 4Daniel B. Gish, west springfield, Masa Application October 21, 1936,1 -Serial Noi 106,880 V ' z claims. (ci. 1384-56) ‘_ v _ canized. This application may be brought vabout This invention' relates- to improvements in hose in variousways. and is directed more particularly to the pro vision of a novel hose construction which is both suitably flexible and adapted for conducting Gl fluids of all kinds at high pressures. As a nextv step, what >may be called a restrain ing sheath 8 is formed around the sheath 4. The sheath 8 preferably consists of a group of ele Gl It is one of the principal objects of the in-- . ments l0 which are led onto- the sheath 4 under ntion to provide a process whereby a> hose is ‘ tension and in such a way that they are wound constructed which is capable of withstanding ex-._ spirally about the sheath in one direction and in adjacency, as shown. A plurality of wires suit treme pressures and is at the same ltime suili ably perform this function and according to the 1.4 0 ciently flexible so ias to be adapted for many 10 preferred formlof the invention, the elements and various purposes. _I0 consist of wires. According to the novel features of the inven l ` . In order to obtain a winding which will more 1 tion. -the hose is constructed of a plurality of layers vof different materials and, as will appear, or less prevent expansion and contraction, I have to be capable of performing certain functions tension a number of elements l0 onto the sheath these layers have different characteristics so as « found that it is desirable to lead or wind under simultaneously. and zzo-'operating with theother layers to pro vide alhose which'will withstand high pressures ' A second restraining sheath l2 is formed about and at the same time have the desired degree > sheath 8in a similar way. However, sheath i2 Il” ñexibility. ' " consists ’ lAlso, according to the features of this inven-V tion, the method of making the hose- is such as ~ to facilitate the efficient and ecomonical produc ’ »tion ofthe hose and a homogeneous and ilrmly bound product'is obtained; Various other novel features of the invention .will be hereinafter ¿more fully referred to in con nectibn with the accompanying description of the preferred form thereof, reference being hadthe drawing wherein: 30 Fig. ,1 is a fragmentary side «elevational view vof a hoselembodying the novel features of the invention; Fig. 2 isfa similar view to' show _ and of the invention. a modified form adjacently-disposed elements tend. It may be stated that'it is- preferable that . the windings vof sheath's 8 and l2 have-Substan tially the same pitch and the elements M should be of the same material as elements l0. The winding operations of elements I0 and Il may ormay. not be carried on simultaneously but l have found that where they are wound simul-v taneously under 'tension the torque set up by the " winding in one direction is more or less counter acted by the torque of the opposite winding so that a balanced structure is obtained. > v Again I preferably provide a layer of cement » >on this much of the hose so »as to form a binder ' Referring now to the drawing more in deta the'invennop win be muy described. of wound spirally about sheath 8 in a direction opposite to that vin which the elements I8 ex . - » for another sheath-i6. As will appear, I later - vulcanize the hose so, it will be appreciated, the At 2 is shown a hollow core or inner tube which application of cement layers at these different is preferably formed of some more or less pliable stages oi.' its manufacture later serves to 'render material.` The material ofthe core may vary, the assembly more homogeneous and bind the A ' depending somewhat upon the use to which the diiïerent layers together. hose is to be put. A bendable plastic composi» l Over the restraining sheaths- 8 and l2 a layer tion „such asvulcani'zlng cement has been found i6 of windings I8 of some fibrous material is ap plied under sumcient tension so that the elements particularly suitable; - -» What may be called a reinforci?g sheath 4 is I8 lay smoothly and evenly and, as will later ap disposed around a core 2 andthis is formed of a pear, serve to hold the -elements making up» plurality of interlaced elements 6. According to sheaths 8 andv I! from getting- out of position. ‘ `th e preferred form ofthe invention. .these ele These elements I8, which» may be of some mate ments 6 consist of wire or cord and> they are rial such’as cotton, are preferably led onto the 50 br aided or interlaced in some way so as to form sheath l2 in much the same way asl are the ele the tubular sheath 4. It will be appreciated that ments I0 and Il, that is spirally and in parallel such- a sheathsuitably protects the' core and ism and in one direction. A second fibrous _layer at the same time has the desired flexibility. Preferably there is then placed over this much 20 is formed by `winding adJacently-'disposed ele ments 22_ spirally about layer I6 in an opposite- 55 of Vthe hose a layer of cement which can be vul w 2 2,128,814 direction. 'I'hese layers function in one way to ' holdV the windings of the restraining sheaths. This whole -assembly, that is core 2, reinforcing , u _ While- r have described the invention m greet detail and with respect to a preferred form `there of, it is not desired to be limited thereto since and restraining sheaths and ñbrous layers, I call - many changes and modiñcations .may be- made a carcass. As a final step, a cover member is therein without departing from the spirit. and provided around the carcass and according- to the scope of the invention. What it is desired to invention this may take various forms. - claim and secure by Letters Patent of the United In Fig. 1, a cover 24 is formed of interlaced ele States is: ' y _ ments 26. These elements 26 preferably consist 1. A flexible hose of the class described com 10 of cotton elements braided or woven together. . When such a cover is used I have found it desir able to provide a layer of cement on sheath 20 and then the whole -assembly is- vulcanized. In Fig. 2, there is shown the outside of vthe carcass, that is the sheath 20, and this has a _ cover 30 therearound formed of some rubber com# pound. Then the carcass and cover are vulcan ized. l With either type of cover and with the vulcan-l izable cement the fabricated hose lis vulcanized and this serves to provide a homogeneous .struc ture with the different sheaths 'or layers combined in such away that they may function for their particular purpose and co-operatc with one an prising in combination, a core having a bore, a 10 reinforcing sheath around said core formed of a plurality of interlaced metallic elements, a layer of cement over said sheath, a restraining sheath around the vreinforcing sheath consisting of a group of closely adjacent separate wire elements wound spirally in one direction, a second restrain ing sheath consisting of a group' of closely adja cent separate wire elements wound spirally in an opposite direction over the first-named restrain- , ing sheath, a layer of cement- over said second restraining sheath, a layer of adjacently-disposed separate fibrous elements wound spirally around the second restraining sheath in one direction, a second layer of adjacently> disposed separate ñ brous elements Wound spirally over the first 25 fibrous layer in an opposite direction, the said structure wherein a central more or less pliable ¿core, sheaths and layers forming a carcass, and core is reinforced by a flexible sheath or sheaths a cover around said carcass, the whole being vul of interlaced elements with the latter formed in such a way that the bore of -the core is not unde 2. A ñexible hose of the class described com sirably constricted and without impairing the prising in combination, _a core having a bore, a re- 30 bendability or flexibility of the hose. Further, inforcing sheath around said core formed >of a the restraining sheaths, with the windings of one plurality of interlaced metallic elements, a layer sheath disposed in an opposite direction from the of cement disposed over said sheath and in some 'windings of the other, serve to hold the reinforc of the 'interstices thereof, a restraining sheath ing sheath against expansion while the fibrous around-the reinforcing sheath consisting- of a 35 sheath or sheaths overlie, hold and protect the group of closely adjacent separate Wire elements other. . l It will be observed that I have provided a hose canized. restraining sheaths. The vulcanizable cement may be used, at var-- ious stages of' the fabrication so the Whole may be vulcanized to provide the homogeneous iiex-l ible structure. The hose is so constructed'that the core 2 is well reinforced while at the same time the restraining sheaths prevent undue ex 45 pansion which would tend to impair the rein-v forcing eiîect of sheath 4. A . , It should be pointed out that, if desired, a cover of interlaced elements may be placed over the carcass and an auxiliary cover of- some- rubber 50 compound, such a‘s 30, may be placed over this cover of interlacedelements. That is, the par ticular way in which the outside of the hose is constructed is not so important as the construc tion of the carcass and the vulcanizing feature. » ~ Y , wound spirally in one direction, a second re straining sheath consisting of a group of closely vadjacent separate wire; elements wound spirally in an opposite direction over the first-named re 40 straining sheath, a layer of cement disposed over said~ second restraining sheath ~and in some _of the interstices thereof, a layer of adjacently-dis posed separate fibrous elements wound spirally 45 around the second restraining sheath in one di rection, asecond layer of adjacently disposed sep arate ,ñbrous elements wound spirally over the first fibrous' layerv4 in an opposite direction, the said core, sheaths and layers forming a carcass, a layer of cement disposed over said carcass, and 50 a cover around the whole and the whole being ’ vulcanized. . ~ DANIEL B. GISH.