US451707A - cline - Google Patents

Description

(No Model.)

1'. 11. 0111111. SASH WEIGHT CASTING MACHINE.

No. 451,707. Patented May 5,1891.

in Jim-fir W11 I .4 Sheets-Sheet 1.

(No Model.) 4 Sheets-Sheet 2. P. N. OLINE. SASH WEIGHT CASTING MACHINE.

No. 451,707. Patented Ma -,5; 1391.

(No Model.) 4 SheetsSheet 3. F. N. OLIN'E. 'SASH WEIGHT CASTING MAGHINE.

No. 451.707. Patented May 5,1891.

(No Model.) 4 SheetsShet 4. P. N. ULINE.

SASH WEIGHT CASTING MACHINE.

Patented May 5, 1891.

1 WI? 8 z a 7 UNITED STATES FREDERICK FRANK PATENT OFFICE.

N. CLINE, OF CHICAGO, ILLINOIS, ASSIGNOR OF TYVO-TI'IIRDS TO A. HECI-IT AND HUGH MCFARLANE, BOTH OF SAME PLACE.

SASH-WEIGHT-CASTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 451,707, dated May 5, 1891.

Application filed Tune 10, 1890- Serial No. 354,901. (No model.)

To all whom, it may concern.-

Be it known that I, FREDERICK N. CLINE, a citizen of the United States, residing at Chicago, Illinois, have invented certain new and useful Improvements in Sas11-IVeight-Casting Machines, of which the following is a specification.

My invention relates to sash-weight-casting machines wherein a series of longitudinally-divided molds hinged together are secured upon a rotating frame, the rotation of which permits the molds to be filled successively, and after they are filled carries them into contact with tripping devices, whereby the members are separated to discharge the sash-weight, which drops upon a traveling belt or apron and is conducted away from the machine. In a machine of this character it is sometimes desired to make weights of various sizes at the same time, and as the length of the weight is usually increased with but slight change in the diameter the molds must be correspondingly lengthened. IIeretofore this has not been attempted, because it has been considered necessary to maintain the rotating frame at a fixed distance above its base or support,in order that the molds might be brought to engage the tripping device. I have provided for using molds of varying lengths on the same rotating frame by making said frame vertically adjustable with reference to the base, and I have also adapted the tripping devices to operate without adjustment in the several positions of the frame. I have also provided an improved means for clamping the members of the molds during the act of forming the metal and until they are ready to engage the trip. I have improved other features of construction, which will be hereinafter described and claimed.

In the accompanying drawings, Figure 1 is a perspective view of an apparatus embodying my improvements and comprising a rotating frame bearing thirty (30) molds, with tripping projections located at opposite points in the path of rotation, whereby molds on opposite sides of the frame are filling while others are discharging. Fig. 2 is a plan View,

and Fig. 3 is a side elevation. Fig. 4 is a central vertical section of the central bearing of the rotating frame and of thebearings for a vertical power-shaft, the latter being shown in broken elevation. Fig. 5 is a transverse section on the line 5 5 of Fig. 4. Fig. 6 is a detail view of an adjusting device for the mold-clamps. Figs. 7, S, 9, and 10 are detail views of the mold.

In the drawings, A represents the base of the machine, which has a. step 13 to provide a bearing for a vertical driving-shaft C.

D is an annular bushing fitted to the bearlugs for the end of the shaft, and E a bearits lower face, rests upon these balls, and

its upper end is bored to a larger diameter than the shaft and threaded interiorly, as shown at g. Lever-sockets G are provided in lugs formed on the sleeve G to adapt it to be rotated. A sleeve H, having exterior threads 71. and a cap h, is keyed on shaft 0. The sleeve Gr has a longitudinal recess cut on its outer face and a threaded segment I is placed therein, the recess being of such depth as to permit of the segment being drawn away from looking engagement with the threads of the sleeve H. Set-screws J are tapped through the wall of sleeve G and into segment I, and upon being turned operate to force the segment into locked engagement with sleeve H, so as to cause the rotation of sleeve G with H, or to withdraw the segment to permit the turning of sleeve G independently in order to adjust the sleeve I-I vert-ically.

L represents the mold-wheel, whose hub L is keyed to shaft C and rests upon the head of sleeve H, whereby it is elevated or lowered when said sleeve is adjusted as, before described. Power is applied to shaft C in any convenientmanner-as,forexample,by means of the gearing shown in Fig. 3.

The molds are shown in detail in Figs. 7 to 10, inclusive, of the drawings, and they consist of two members MM, the former being bolted or otherwise secured to the rim of the mold-wheel and the member M .being hinged to member M and bearing the anti-friction rollers m and the t1'ipping-lever"m, which is secured with the projecting lower end of the part M. These molds may be of different lengths, and to adapt their tripping-levers to be operated upon, in order to open the molds and discharge the sash-weights, I provide the tripping devices shown particularly in Fig. 1 of the drawings and consisting of the bracket N, having the vertically-positioned roller or sleeve 02, of such length as to engage the. variously-positioned tripping-levers of the' molds. If the metal is poured at more than one point at the same time, it will be necessary to employ more than one of these tripping devices.

Referring particularly to Figs 1, 2, 3, and 6 of the drawings, the construction of the spring clamping devices for holding the swinging member of the mold during the operation of filling will be best understood. 0 represents a standard, which is adj ustabl y se- 1 cured to the base of the machine by means of the set-screws O',working in apertures o'of the base, and the set-screw P furnishes means for moving this standard toward and from the? mold-wheel. The upright portion of this standard is vertically recessed, and within the recess slides a second standard Q, having I the rack g on its lower end. A pinion R is j ournaled in the standard Q, its teeth enmeshing with the rack-teeth of standard Q, and a pivoted dog or pawl S engages the teeth of this pinion to lock the standard Q in the desired position. The upper end of the standard Q bears the rods T,-each of which carries a bow-spring U, whose ends are secured in keepers v on curved plates V, against which the friction-rollers of the molds bear during the operation of filling. The rods T are threaded and nuts t are applied to the threads of the rods for. the purpose of adjusting the tension of the bow-springs. Iprefer to employ two of the standards 0 and two of the plates V, so as to securely clamp the hinged members of the mold during the pouring of the metal, and the employment of two of these clamping-plates, together with the described means of adjustment, provides for any contingency likely to arise, owing to the substitution of longer or shorter molds in the moldwheel or of molds of different diameter.

The operation of the apparatus willbe readily understood from the foregoing description, I

and its capacity for producing a variety of sizes of sash-weights at the same time-will be found of great convenience and utility.

I claim- 1. In an apparatus for making sash-weights, the combination, with a vertically-positioned rotatable driving-shaft having a mold-bearing frame secured thereto, of two oppositeiy-threaded sleeves, one secured to the shaft and the other having a bearing upon a fixed part of the apparatus, and means for locking said sleeves against movement upon each other, substantially as described.

2. In an apparatus for making sash-weights, the combination, with a vertically-positioned rotatable driving-shaft having a mold-bearing frame secured thereto, of two oppositelythreaded sleeves, one secured to the shaft and the other having a bearing upon a fixed part of the apparatus, and a threaded segment seated in a. recess in the outer sleeve and engaging the-threads of the inner, and set-screws tapped through the wall of the outer sleeve and in to said segment, whereby the latter may be adjusted to lock and unlock the sleeves, substantially as described.

3. In an apparatus forinaking sash-weights, the combination, with a horizontally-rotating mold-frame bearing molds whose members are hinged together, of curved plates secured in proximity to the path of the molds and adapted to engage the swinging member thereof to clamp it upon its fellow, .and bowsprings having their ends loosely secured with the plates, and means for adjusting the tension of said springs independently, whereby the plates may be separately adjusted, substantially as described.

t. Inan apparatus for makingsash-weights, the combination, with ahorizontally-rotating mold-frame bearing molds whose members 7 are hinged together, of spring-pressed clamping-plates located in proximity to the path of the mold and adapted to clamp theswinging member thereof upon .its fellow, a sliding standard to support-said plates, said standard having a rack and pinion whose teethare enmeshed with the rack-teeth, and a pivoted pawl or dog to lock the pinion and thereby the sliding standard, substantially as described.

FREDERICK N. OLINE.

Witnesses:

C. O. LINTHICUM, FREDERICK O. Goonwm.

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