Патент USA US2124639код для вставки
July 26, 1938. w; J. SPENSLEY - FOUNDRY JACKET 2,124,639 " Filed Nov. 3, 1937 ‘~ I "IN l nl l il l? l l w, 7/ / j, Patented July 26, 1938 2,124,539 "UNI TED ‘STATES PATENT OFFIEC 2,124,639 r ‘ FOUNDRY JACKET William J. Spensley, Dubuque, Iowa, assignor to The Adams Company, Dubuque, Iowa, a cor poration of Iowa Application November 3, 1937, Serial No. 172,536 5 Claims. (Cl. 22-112) This invention relates to foundry jackets and jackets have been known in the past but their .has special reference to a metal foundry jacket construction has been such that they are open of improvedformand to a novel method for mak to a number of serious disadvantages both from ing the same. the standpoint of the manufacturer and of the While. foundry jackets are of relatively simple user. According to the present invention, I make “.5 construction, yet numerous difficulties arise in four cast plates designated generally by the nu the manufacture .of jackets which will give satis merals 1, 8, 9 and I I, the plates ‘I and 8 being factory service over a long period of time, due identical and formingthe sides of the jacket, and inv a large measure to the severe-conditions under the plates 9 ‘and II being identical and forming which they are used and to the rough treat the end walls of the jacket, These plates are 30 ment given them by the workmen. They are cast with a plurality of vparallelly disposed trans subjected to rapidly changing temperature which »versely extending grooves I2 which are spaced at times becomes very high, and to the prolonged longitudinally of the plates on the inner surface action of very hot gases produced in the casting thereof. In the present instance these grooves ) of metal, which in?uences ‘tend to damage the are spaced about three to the inch and form metal from which they are made and to warp therebetween aplurality of transversely extend the sides of the jacket which renders them use ingribs I3. The-grooves have sloping side walls less because they will no longer properly ?t the .asshown ‘at I4 and the ribs have flat upper sur molds. When they become warped in this fash faces as shown at I5 formed by grinding or ion it has been necessary, in the past, to discard otherwise trimming the upper edges of the ribs as the jackets, and thus incur a considerable by grinding .in a ?at bed’ grinder so that all of N) 0 ?nancial loss. the upper surfaces .or crowns of the ribs are co Important objects of the invention are the pro planar. The grooves I2_ extend the entire dis vision of a foundry jacket having improved struc tance across the plates and terminate directly ture resulting in greater strength and lighter on the edges thereof .as shown at I 6 (Figure 1). weight, which causes the rapid dissipation of gas The outerlsurface of- the plates. .is provided with 5 away from the surface of the jacket to prevent grooves IT and. ribs I8 identical in every respect pocketing of the gas against the surface and re with the grooves I2 and ribs I3, with the excep sultant uneven temperature, which structure per mits of replacement of any part of the jacket when damaged without special ?tting, and which resists distortion of the jacket ‘in use. Another object of the invention is the provision of a method for making foundry jacketswhich 35 includes the step of casting suitable side plates and wherein plates from the same molds may be used in the making of diiferent types of 23 at the opposite end thereof, the brackets be ingpreferably cast integral with the plate. The plates 9 and II likewise have brackets 24, 25, parent from the following description and the 26 and 21 spaced from the edges of the plates in the same planes as the brackets of the plates 7 and 8. The end plates 9 and II are further ‘jackets. Otherobjectsand advantages will become ap vaccompanying drawing, in which— _ Figure 1 ‘is ‘a perspective view of a jacket em bodying my invention; _ Fig. 2 is a fragmentary side view showing one 45 ‘corner of a jacket in which the opposed side walls are parallel; Fig. 3-is a fragmentary side view similar to Fig. 2 showing a jacket in which the side walls are tapered; Figs. 4 and v5 are top views of Figs. 2 and 3, and Fig. 6 is a section ‘through an end wall. The invention contemplates a foundry jacket formed substantially entirely of cast metal of 55 which aluminum or cast iron is preferable. Such tion. that the tops of the ribs are not ?nished in themanner of the ribs I4, the casting merely being cleaned off on the outer surface in the usual manner. The ‘outer surface of the side members ‘I and 8 is provided with spaced brack ets I9 and 2| at one end thereof and 22 and provided with outwardly extending handle mem bers 28 castintegral with the plates. vvAfter the casting of the plates and the grind ingof the inner surface thereof, the edges of the 4.0 platesare ground or otherwise trimmed to a proper bevel as shown at I 6 and to open the ends of all of the grooves I2. Likewise the ends of ‘each of ‘the plates are then ground to a slope as shown in Fig. 2 in such manner that'the lower edges of the plates are longer than the 50 upper edges thereof, as will be apparent from Figs. 2 to 5. ‘The plates are held together at their corners to ‘form' a rectangular structure by means of lower corner ‘members 29 and upper corner mem- 55 2 2,124,639 bers 3i seated on the brackets of the plates. Thus, the corner member 3| is seated on brackets 22 and 24 of the plates 8 and II, spanning the corner formed by these plates, and likewise, the corner member 29 seats upon brackets 23 and 25 of the plates. similarly spanning the corner. The corner member 3| is secured to the brackets by means of bolts 32 and 33, and the corner member 29 by means of bolts 34 and 35 which 10 pass through holes in the brackets 22 to 25. These holes are drilled into the brackets while' the plates are rigidly held in ?xtures so that the holes always occupy the same relationship with is further facilitated by the fact that the metal is relatively thin in the areas where the inside and outside grooves pass each other. This means a material reduction in Weight and yet because of - the vertically disposed ribs on one side of the plate and the horizontally disposed ribs on the opposite sides of the plate, a jacket of greater strength is produced than has heretofore been possible. A feature of great importance is the fact that 10 any one of the side walls of the jacket may be replaced by the user. In other words, in case of damage to any one of the side wall plates, the user may order from the manufacturer a re respect to each other and with respect ‘to the 15 15 plates. It will be seen that the plates are like \ placement part which can then be installed in the wise secured together at each corner by means old jacket without any ?tting whatever, and the of corner members 36, 31, 38, 39., etc. secured to the plates in like manner, thus ?xedly and rigidly holding the plates in the form of a rec-' '20 resultant jacket will have the proper taper and ?t. This is possible because of the fact that the holes in the brackets are uniformly spaced and tangular jacket structure. are inserted therein with the plate in a ?xture 20 In the manufacture of jackets of this char acter, it is necessary for the manufacturer to pro vide jackets of the same size at the base but hav so as to obtain uniformity in production. It is further made possible because the jacket ‘is ing different degrees of taper. For example, the which is removable by removing suitable bolts. While I have thus described and illustrated a 25 speci?c embodiment of the invention I am aware 25 form shown in Figure 1 is a jacket having a taper of about 1A" per foot per side, whereas in Fig. 2 the jacket has vertical side walls having no taper. In order to manufacture jackets from the same molds having any desired degree of taper I have 30 provided the plates with sloping‘ ends as shown in Fig. 2, and provide a series of corner members having the distance and relationship between the bolts 32 and the bolts 33 varied through the de sired range by steps so that by selecting the proper corner memberrand securing the same in place on the brackets, the resultant jacket has the desired taper in the side wall. This is illustrated from a comparison of Figs. 4 and 5. Thus, in order to impart the greater taper shown in Figs. 3 and 5, corner members 4| are employed in which the distance and relationship between the two bolts 32 formed of four separate cast plates, any one of that numerous alterations and changes may be made within the spirit of the invention and I do not wish to be limited except as required by'the prior art and the scope of the appended claims, 30 in which-— . .' I claim: 1. A foundry jacket comprising four independ-} ent side members adapted to be connected, to gether at their ends to form a rectangular struc ture, each of said members having the inner sur 35 face provided with parallelly disposed grooves closely spaced along the entirelength thereof, said grooves terminating at the edges of said side members for communication therewith behind 40 the inner plane of the member, and having close is the same as that found in Figs. 2 and 4, and ‘ ly spaced grooves on the outer surface thereof likewise the distance between the bolts 33 is the extending longitudinally of said plates, spaced same as in Figs. 2 and 4. However, it will be brackets at each end of said members having ‘seen that the distance between the bolts 32 and prearranged holes, corner members’ shaped to 45 45 33 is materially,‘ less than in Figs. v2 and 4, thus drawing the ends of the plates substantially to gether adjacent their upper edges as shown at 42, as distinguished from the relatively wide spac 50 ing therebetween as shown at 43 in Figs. 2 and 4. It will be seen that through this arrangement any desired taper may be obtained in the jacket. Attention is directed to the manifold advan tages of my improved jacket. It will be seen 55 that since the grooves I 2 expand completely to "the top andlbottom of the side walls there is no possibility of heated gases being trapped adja cent the side walls of the jacket during the cast ing operations. The size of the jacket is deter 60 mined by the plane of the upper edges of the ribs 5 3 and consequently when the jacket is applied to a mold the upper edges of these ribs bear against the sand of the mold leaving the grooves l2 ex posed, which thus form conduits for conducting 65 the gases away from the mold and prevent their ‘accumulation adjacent the surface of-the jacket. This means‘that in use the jacket rapidly as sumes a uniform temperature which materially prolongs the life of the jacket. Furthermore, 70 the ribs l8 on the outer surface function as radi ating ?ns tending to' dissipate the?heatr in the metal. As a result of this construction, foundry jackets made in accordance with this invention never acquire in use anywhere near the high tem 75 perature reached by the usual metal jacket. This span the corners of said structure and seat on said brackets, and bolts passing through the corner members and said brackets to retain said side members in prearranged relationship as deter— mined by the size of said corner members. 50 2. A foundry jacket comprising four independ— ent cast metal side members adapted to be con nected together at their ends to form a rectangu lar jacket structure, each of said members having an inner surface provided with transverselyex tending parallelly disposed grooves closely spaced 55, along the entire length thereof, said grooves ex tending completely across the side members and terminating at the edges thereof for communica tion therewith behind the inner plane of the; member, said members also having closely spaced grooves on the outer surface thereof extending longitudinally of said plates providing small areas of thin cross-section in the regions where the inner and outer grooves cross for reduced weight? 65 and rapid dissipation of heat, spaced brackets at‘ each end of said members having holes in pre arranged relationship, corner pieces shaped to span the corners of said jacket structure and seat on end brackets of adjacent sidemembers,‘ and bolts in spacedrelation on the corner mem bers and’ passing through the holes of said brackets to secure said side members in prear ranged relationship as determined by the size of ' said corner members. 1 " 2,124,639 3. A foundry jacket of cast metal comprising plates secured together at their ends to form a rectangle, each of said plates having an inner surface provided with transversely extending par allelly disposed grooves closely spaced along the entire length thereof, said grooves extending com pletely across the side members and terminating at the edges thereof for communication there with behind the inner plane of the member, said 10 members also having closely spaced grooves on the outer surface thereof extending longitudinal ly of said plates providing small areas of thin cross-section in the regions where the inner and outer grooves cross, for reduced weight and rapid dissipation of heat. 4. The method of making a foundry jacket comprising casting ?at metal plates with trans versely extending parallelly disposed grooves on one side thereof providing intermediate upstand ing ribs, said grooves being closely spaced along the entire length thereof and extending com pletely across said plates, with parallelly disposed closely spaced grooves on the opposite sides of the plates extending lengthwise thereof, and with outstanding brackets on the last mentioned sides adjacent the ends of said plates, grinding the ends of said plates on a slope, ?nishing the sur face of said plates to produce coplanar upper 3 edges on said ribs, securing said plates in a ?x ture, drilling holes in' said brackets according to a uniform pattern, and securing said plates together in the form of a rectangle by connect ing the brackets at abutting ends of said plates by means of corner members of a shape dependent upon the taper of said jacket, and bolts received in said drilled holes. _ 5. The method of making a foundry jacket comprising casting flat metal plates with trans 10 versely extending parallelly disposed grooves on one side thereof providing intermediate upstand ing ribs, said grooves being closely spaced along the‘ entire length thereof and extending com pletely across said plates, with parallelly disposed closely spaced grooves on the opposite sides of the plates extending lengthwise thereof, and with outstanding brackets on the lastmentioned sides adjacent the ends of said plates, grinding the ends of said plates on a slope, ?nishing the surface of i said plates to produce coplanar upper edges on said ribs, securing said plates in a ?xture, drilling holes in said brackets according to a uniform pattern, and connecting said brackets by means of any of a plurality of corner members depend 25 ent upon the relative slope to be imparted to said side walls to produce a jacket of any desired taper. WILLIAM J. SPENSLEY.