US393378A

US393378A - Machine for twisting metal and-forming spiral conveyers

Info

Publication number: US393378A
Authority: US
Publication date: 1888-11-27
Anticipated expiration: 1905-11-27

Description

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W. 0. MARK. MACHINE FOB. TWISTING METAL AND FORMING SPIRAL O0NVEYERS.-

N0. 393 8. g Patented Nov. 27, 1888.

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MACHINE FOR TWISTING METAL AND FORMING SPIRAL GONVEYERS. No. 393,378. iPatented Nov. 2'7, 1888.

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MAGHINE FOR TWISTING METAL AND FORMING SPIRAL GONVBYERS. No. 393,378. Patented Nov. 27, 1888.

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XVILLIAM 0. MARK, OF ONAW'A, IOWA.

MACHINE FOR TWISTING METAL AND-FORMING SPlRAL CONVEYERS.

$PECIPICATION forming part of Letters Patent No. 393,378, dated November 27,1888,

Application filed N0vember3,18E7. Serial No. 951,162. (Modch) To all 1072,0722 it may concern.-

Be it known that 1, WILLIAM 0. MARK, a citizen of the United States of America, residing at Onawa, in the county of Monona and State of Iowa, have invented certain new and useful Improvements in Machines for Twisting Metal and Forming Spiral Conveyors, of

v which the following is a specification, reference a plan view of the machine.

being had therein to the accompanying drawings.

This invention relates to machines for twisting metal and forming spiral conveyers; and it consists in certain improvements in the construction of such machines, as hereinafter described and claimed.

In the accompanying drawings, Figure l is Fig. 2 is a front elevation of the same. Fig. 3 is an end View, parts being removed. Fig. at is a cross-section taken on line a: a: of Fig. 1. Figs. 5 and 6 illustrate certain details of the machine. Fig. 7 represents spiral conveyors with right and left twists, respectively.

A designates the frame adapted to carry the operative devices of the machine, in the main standards of which the driving-shaft B has its bearings, said shaft being provided with a crank, a, or with. power-gearing, (not shown,) as desired. Above the drivingshaft are mounted four converging shafts, two of said shafts, O and O, converging from one end of the frame toward the center,and two shafts, O and G converging from the opposite end. These shafts do not have bearings in the main frame, but in supporting-pieces, chiefly supported by the drivingshaft, as hereinafter stated.

On the shafts O and G is mounted a frame, D, the shafts passing through the side pieces of the frame, which is adjustably supported in an inclined position, as hereinafter stated. The outer ends of the shafts O C have their .bearings in the movable pieces b and c, which .end. The outer end of shaft 0 extends into the piece 0 at its upper end and has bearing therein. The inner part of shaft G has bearing in the upper end of a piece, d,which is pivotally mounted on the driving-shaft. The inner bearing of the shaft 0' is in the frame D, through which said shaft passes, as before stated.

Adjacent to the frame Dis a yoke, g, the legs or bifurcations of which are loosely placed in grooves in vertical portions E of the frame,so that the yoke has a slight vertical movement in the adjustment of frame D, hereinafter mentioned, the yoke having a pivotal connection at f with said frame. The pivotal connection with yoke g on one side of the frame D, and the piece 0 with the fixed pin entering a slot in the standard at the other side, serve to retain the frame in position and prevent its lateral or irregular movement, but allow its adjustment. Y

The upper end of frame D has an extension or slotted arm, h, which is adj ustably connected with a cross-piece, F,at the top of frame A by means of a bolt passing through a slot, t, in arm h and a slot, 7;, in cross-piece F, and a securing-nut. This adjustable connection allows the adjustment of frame D in its in clination as desired, and also the reversing of the frame in position from an inclination in one direction to an inclination in the opposite direction, for the purpose herein set forth.

On the inward ends of shafts O O are placed conical rollers G and G, the inclined shafts holding the rollers with their surfaces adjacent to each other and with their inward ends on oblique line corresponding with the inclination of frame D. These conical rollers are adjustable longitudinally on their respective shafts, and are provided with detachable heads m, which are secured to their inward ends in any suitable manner. The shafts O O are provided with connecting gear-wheels H H, to which motion is imparted through wheel K on the driving-shaft.

At or near the opposite end of frame A another frame, D, is mounted on the converging shafts C and C, said frame D being in construction similar to the frame D and having a slotted arm, h, connected in like manner with a slotted cross-piece, F. The shafts OC have The inward ends of said shafts have conical rollers G G placed thereon, the same being adjustable and provided with detachableheads m. The shafts are also provided with con necting gear-wheels H H", one of which ongages with a wheel, K, on the driving-shaft. The said heads in m aredetachabl y connected with the conical rollers for the purpose of enabling the rollers to be used without the heads in twisting plates having no central shafts. The rollers and this shaft are inclined, and the rollers are made conical in shape to enable them to form and readily travel over the different surfaces of the spiral wings. The conical rollers being adjustable longitudinally on their shafts, the rollers G G may be set closer to or farther from the rollers G" G to adapt the machine for twisting plates of different widths and plates having smaller or larger central shafts. In forming the spiral conveyor shown inFig. 7 the heads in m are attached to the rollers for the purpose of swaging the metal closely around the central shaft, a. To adjust the rollers in operative positions the frames D D must be reversely inclined, )lacing the rollers G G on one inclined plane and the rollers G G on a reversely-inclined plane corresponding with the inolinations of the frames. The relative positions of the conical rollers may be best described by reference to three planes-viz., a vertical plane on line :r .r of Fig. 1, a horizontal plane on line a s of Fig. 2, and a vertical plane on line .5 s at right angles to plane a: x of Fig.1.

Rollers G Ii are on one side and rollers G G are on the other side of plane 0: Rollers G G are mostly above and rollers G G" are mostly below plane 8 s. Vhen the ma chine is adjusted to form a right-hand spiral conveyor, the rollers G G are mostly in front and the rollers G G are mostly in the rear of the plane a s; but when the machine is adjusted to form a left-hand spiral conveyor the positions of the rollers are reversed in relation to the last-named plane, so that G G are in the rear and G G are in front of plane 8 s.

L designates an adjustable frame located on the front side of the machine, provided with guide-rollers 1'1, adapted to guide a metallic plate as it is introduced into the machine. This frame is attached to the front ends of horizontal bars 1), arranged to slide longitudinally between the gnidebars p and extended under the conical rollers.

l\I designates another frame located on the rear side of the machine, and provided with a cylindrical guide, N, adapted to receive and guide the twisted portion of a metallic plate as it passes through the machine. This frame is attached to the rear ends of the horizontal bars (1, arranged to slide longitudinally between guidebars q q and extended by the sides of bars pander the conical rollers. These frames are adapted to slide longitudinally for the purpose of adjusting them in thediiferent positions required for properly supporting and guiding plates of different lengths as they are passed through the machine.

The two sets of rollers being adjusted to form a right-hand spiral conveyor, as shown in Figs. 1 and 2 of the drawings, and the drivingshaft being revolved in the required direction to rotate the rollers in the reverse directions, (shown by the arrows in Fig. 2,) one end of a plate to be twisted isinserted between the guide-rollers r and is projected forward in position for the ends of the wings to be caught between the rollers, and the plate is then fed through the machine by the reverse movements of the rollers. The plate being introduced into the machine, as above stated, the ends of the wings come in contact first with the rollers G G and afterward with the rollers G G", the right wing, a, passing under and bearing against the lower surface of roller G, and then passing over and bearing upon the upper surface of roller G, while the left wing, a, passes over and bears upon the upper surface of roller G", and then passes under and bears against the lower surface of roller G.

Hence it will be readily seen that the forward a portion of the right wing is being twisted 11pward by the roller G while the forward portion of the left wing is being twisted downward by the roller G, and that the roller G bears downward the portion of the right wing immediately in front of roller G, while the roller G bears upward the portion of the left wing immediately in front of the roller G, and thus the rollers G G twist the right wing while the rollers G" G twist the left wing. To form a left-hand conveyor the positions of the frames carrying the conical rollers are reversed, thus reversing the relative positions of the two sets of rollers, so that the end of the plate to be twisted, being inserted through the guide-rollers, comes in contact first with rollers G- and G and then with the rollers G G.

In the operation of forming a loft-hand spiral conveyor the driving-shaft and rollers are rotated in the same directions, as above described, and the functions of the conical rollers in twisting the wings of this conveyor are precisely similar to their functions in forming the right-hand conveyor.

These spiral conveyors may be formed by this machine of slitted plates such as are shown in the drawings of this application, and are fully set forth in the patent, No. 323,944, granted August 11, 1885, to W. O. and N. C. Marr; or the conveyors may be formed by this machine of solid seamless plates, as fully set forth in the patent, No. 371,609, granted to me October 18, 1887, in which last-nained patent it is stated the plates may be rolled with a ICC IIO

central enlargement extended at the ends to form the journals; or the plates may be rolled.

forming beads near the edges of the wings of the conveyer to strengthen the said edges. These beads are formed upon the wings by the prcssure'of the rollers upon the plate as it is passed in a red-hot condition through the ma chine in the twfsting operation, the rollers neing adjusted to produce upon the portions of the plate adjacent to that portion which be comes the bead sufficient pressure to reduce the thickness of those portions of the plate and press the heated metal into the grooves in a manner similar to the well-known process of rolling metallic substances. To enable the said beads to be formed with the least possible pressure and friction of the twisting-machine rollers upon the plates, the portions of the wings to be headed may be thickened in forming the plates for this purpose in a rolling-mill, so that the pressure of the twistingmachine rollers will be mostly upon the beaded portions of the wings.

When it may be desired to dispense with the beads on the wings, plane rollers may be substituted in the places of the grooved rollers.

I claim-- 1. In a metal-twisting machine, the combination of the conical rollers G G, mounted on one side of a vertical plane upon inclined shafts which are adjustable on reversely-inclined planes, and the conical rollers G G mounted on the opposite side of the said vertical plane upon inclined shafts adjustable on reversely-inclined planes, and means adapted to rotate the rollers in reverse directions, whereby a metallic plate is fed between and twisted by the rollers, substantially as and for the purposes described.

2. In a metal-twisting machine, the combination, with the frames D D, connected with mechanism whereby the frames are adjustable on reversely-inclined planes at any required inclinatiomof the conical rollers G G, mounted on one side of a vertical plane upon shafts and justable with the frame D, and the conical rollers G G", mounted on the other side of the said vertical plane upon shafts adjustable with the frame D, and means adapted to rotate the rollers in reverse directions, whereby a metallic plate may be fed between the rollers and twisted to the right or left at any required angle, substantially as and for the purposes described.

3. In a metal'twisting machine, the conical rollers G G, mounted on one side of a vertical plane, and the conical rollers G" G, mounted on the opposite side of the said vertical plane,

in combination with the heads in m, detachably connected with the rollers, and means adapted to rotate the rollers, substantially as and for the purposes described.

4. In combination with the slotted bars F F, attached to the frame A of a metal-twisting machine, the reversible frames D D, provided with slotted arms h h, the conical rollers G G, mounted on one side of a vertical plane upon the shafts O G, connected with the'said frame D, the conical rollers G G", mounted on the other side of the said vertical plane upon the shafts G 0 connected with the said frame D,and mechanism adapted to rotate the rollers, the said slotted bars being provided with measuringscales, and" the said slotted arms being adjustably connected with the slotted bars, whereby the conical rollers may be adjusted at the different positions required for twisting the flights of spiral conveyers at different angles, substantially as and for the purposes described.

5. In combination with the slotted bars F F, attached to the frame of a metal-twisting machine, the reversible frame D, provided with the slotted arm 71, adjustably connected with the slotted bar F, the movable bearings I) c d, as constructed and connected, the 0011- ical rollers G G, mounted on the inclined shafts G 0, extended through the frame D and having their bearings in the frame and in the said movable bearings, the reversible frame D, having the slotted arm h, adjustably connected with the slotted bar F, the movable bearings b c d, as constructed and connected, the conical rollers G G mounted on the inclined shafts 0 0 extended through frame D and having their bearings in the frame D and in the said movable bearings, and means adapted to rotate the rollers, substantially as and for the purposes described.

6. The combination, with the frame of a metal-twisting machine, of the movable frame L, located on the front side of the machine and provided with the guide-rollersr 0*, adapted to guide a metallic plate as it is introduced into the machine, and the movable frame M, placed on the rear side of the machine and provided with the cylindrical guide N, adapted to guide the twisted portion of the plate as it passes through the machine, substantially as and for the purposes described.

7. The movable bearings b d, mounied on the drive-shaft B, the movable piece 0, having pivotal connection with a standard of the frame A, a vertically-reciprocating yoke, g, the reversible frame D, having pivotal connection with the yoke, the shafts G 0, carried by the said movable bearings and by the frame D, and the conical rollers G G, mounted on the said shafts, in combination with the movable bearings 11 d, mounted on the said driveshaft, the movable piece 0, having pivotal connection with a standard of frame A, avertically reciprocating yoke, the reversible frame D, having pivotal connection with the said yoke, the shafts O C, carried by the said rollers-one on each side of the said vertical planebeing provided with annular grooves n, I 5 whereby thickened raised beads may be formed on the wings of a spiral conveyer as the metallic plate is passed between the rollers, substantially as and for the purposes described.

In testimony whereof I have aflixed my sig- 2o nature in presence of two witnesses.

\VILLIAM 0. MARK.

Witnesses G120. A. OLIVER, A. J. MAUGHIJN.