US654080A - Plate-straightening machine. - Google Patents

Description

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PLATE STHlGHTENlNG MACHINE.

(Application filed Aug. 26, 1898.)

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D. TowNsENn. PLATE STRAIGHTENING MACHINE.

(Application led Aug. 26, 189B.)

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PLATE STRAIGHTENING MACHINE.

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PLATE STRAIGHTENING MACHINE.

(Application led Aug. 26, 1898.)

5 Shggts-Sheet 5 DAVID TOVNSEND, OF PHILADELPHIA, PENNSYLVANIA.

PLATE-STRAIGHTENING MACHINE.

SPECIFICATION forming part of Letters Patent N o. 654,080, dated July 17', 1900. Application filed August 26, 1898. Serial No. 689,594. (No moclcl.)

To all whom it may concern:

Be it known that I, DAVID TowNsEND, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Plate Straightening Machines, of which the following is a specification.

The object of my invention is to improve the construction of a plate-straightening machine, so that the parts can be readily adjusted and by which better work can be produced.

Referring to the accompanying drawings, Figure I is a side view of my improved platestraightening machine. Fig. l is a plan view. Fig. 3 is an enlarged end view. Fig. 4 is a longitudinal section on the line 4 4, Fig. 3. Fig. 5 is a section on the line 5 5, Fig. 8. Fig. 6 is aperspective view of one of the bushings.

In straightening rolled plates it is essential that the straightening-rolls be accurately adjusted and the mechanism so arranged as to be quickly operated. Furthermore, it is important that the framework ofthe machine be mounted on a rm foundation, but so that it can be adjusted either bodily or in sections.

A A are the two shoe bed-plates firmly secured to the foundation, and upon these bedplates are housings B B', secured in position by bolts a or other fastenin gs. The shoe bedplates are longer than the machine, and on the extension ot these bed-plates is mounted the frame C, supporting the driving mechanism. In the present instance I have shown two vertical steam-engines C in outline; but it will be understood that electric or other motors may be substituted for the steam-engines, if desired.

D represents the lower-set of straightenin g-rolls, and E represents the upper set. The lower set of rolls are of the form clearly illustrated in Fig. 5 and adapted to bushings d, mounted in the housings B B. The outer flanges` of the bushing are square, so as to it between the ribs b of the housings, thus preventing the bushings turning with the rolls.

The central roll has an extension d at one end, on which is mounted alarge gear-wheel D', which meshes with a gear-wheel d2 on a shaft D2, adapted to bearings d3, one on the housingB and the other on the engine-frame C.

C2 is the crank-shaft of the engine and has a gear-wheel o, meshing with a wheel c' on the shaft D2, so that motion is imparted to the lower set of rolls D through the train of gears.

On the spindle of each of the lower rollsD are gear-wheels d4, which mesh with intermediate wheels c25, mounted on shafts d6, adapted to bearings in the housing and in a bracket b. By this arrangement of gears the lower rolls turn in the same direction and in unison. In the present instance there are three lower rolls and four upper rolls. Each of the upper rolls is adapted to rest in half-boxes e, having projections c on the under side, and each of these projections has a cavity for the reception of a counterbalance-rod E', connected to a lever E2 at c2. The lever in turn is hung from a link e3, supported at e4 on an extension of the housing. ries counterbalance-weights E3, adapted to each end of each upper roll, so as to counterbalance each roll that 'it may be independently and readily adjusted.

The lever E2 car- Y The rods E' pass through vertical openings in the housings, as illustrated in Fig. 4.

Mounted on each journal of the upper rolls are cap-bearings e5, and above each of these cap-bearings is a screw F. This screw is adapted to anut F', mounted in the housing.

The screws of each end roll are provided with worm -wheels f, gearing with worms f lon shafts f2, having hand wheels f3, so that either one of the end rolls can be adj usted independently of the two central rolls. Each screw is provided with a gear-wheel g, the adjoining wheels meshing. The screws of one of the center rolls are extended, and each screw is provided with a worm-wheel C which meshes with a worm g2 on a shaft G, and on turning this shaft all the screws are raised or lowered. When the screws are raised, the weights E3 will elevate the rolls, so as to'keep them in contact with the bearing caps and screws, as the weights E3 overbalance the rolls.

I provide mechanism whereby one end or the other of the rolls maybe raised or lowered, or both ends may be raised or lowered. If,

Afor instance, al thick sheet is to be straight-- ened, then both ends of the several rolls are IOO raised; but if the pressure is to be relieved on one sidemore than on the other then only one end of each roll is elevated, and, furthermore,

if it is desired to raise or lower each of the center rolls independently I can do so by turning the nuts F', as shown in Fig. 4. On the upper end of each nut is a collar f4, secured to the nut by a set-screw f5, and this collar has a series of perforations in the present instance, so ,that the bar can beinsertedinto any one of the perforations after it has been released by unscrewing the set-screw f6, which presses against the block f7 in the housing, this block in turn pressing against the nut F'.

In order to raise and lower the upper rolls by power, I loosely mount on the shaft G, which extends across the full length of the machine, a loose gear-wheel h, having clutchteeth h', adapted to engage a clutch-head h2 on a wheel h3, adapted to slide on but turn with the shaft G, so that when the hand-wheel h3 is forced forward it engages with the teeth of the wheel h, and if this wheel is driven it will turn the shaft G, and consequently raise or lower the several screws at each end of the machine, as there are worms g2 at each end of the shaft, which engage with the worm-wheels g', described above.

The gear-wheel h meshes with a wheel i', adapted to a fixed stud I, projecting from the bearing I-I on the housing, and this wheel has a cone extension i', forming the internal cone of `a clutch. A gear-wheel t2 has a cone extension vla, forming the outer cone of the clutch, so that when the two cones are forced together the friction will cause them to turn in unison. The wheel 2 meshes with the main driving- Wheel D', Fig. 5, so that when the driving wheel is in motion the wheel 712 is also in motion. In order to keep the wheels i and h normally at rest, I provide a spring 4, which forces the wheel i2 away from the wheel t' as soon `as the wheel is released from the control of the threaded head J, which is adapted to threads t5 on the stud I. This head has a short extension j in the form of a shaft provided with a hand-wheelj, so that on turning the hand-Wheel and the head in one direction the wheel i2 will be forced in frictional contact with the wheel 'i and motion will be imparted to the shaft G from the main driving-wheel. On the reverse movement the wheel will be released aud the spring will force it vout of frictional contact with the wheel t'. It will thus be seen that the several screws for adjusting the rolls can be turned by simply throwing in one clutch and they can also be moved by hand by throwing out the clutch and turning the screws by the hand-wheel.

In order to keep the bearings of the lower rolls cool, I enlarge the openings in the housings for the bushings, forming Water-cavities Ic, Fig. 5, and drill diagonal passages 7o', which communicate with these water-cavities. S uitable water-pipes may be tapped into these pascavities to the vertical openings in the housings for the rods of the counterbalance device H, so that there will be a continuous flow of water through the cavity.

I secure to cross-beams M M, attached to the shoe bed-plates A, a hydraulic cylinder N, the piston N' of this cylinder being secured to the housing B'. This cylinder is for the purpose of moving the housing B' when it is desired to remove any one or all of the rolls D or E, and by simply loosening the bolts a, which hold the housing to the bed-plates and detaching certain of the part-s, fluid introduced into the cylinder will move the housing on the bed-plate, so that access may be had to any one or all of the rolls. When the rolls are in position, all that is necessary is to move the housing back to its normal position by means of the hydraulic mechanism. S is a roll mounted on a shaft S', adapted to bearings on the housings, and this Vroll is the feed-roll for the machine and is situated, preferably, at the end of a train of rolls which feed the plate to the machine. The shaft S also has its bearings on a standard secured to the engine base-plate C and has a wheel s geared to the wheel c on the driving-shaft C2 of the engine.

The standards c2 and s3 have bearings for the shafts C2 and S2, respectively, and are mounted on a cross-frame A', situated between the housing B and the engine bed-plate C. When the feed-roll S is dispensed with, as in the case where the feed-roll of the feedtable is independently driven, then. this intermediate cross-frame A is dispensed with. It will be noticed that the engine base-plate C has two end members c? c3 and a cross member c4, which is mounted at one side of the center and on which the verticalengines are placed. This engine base-plate C is secured to the shoe bed-plates by bolts, so that it can be readily detached from the base-plate and moved thereon or shifted, as desired, and it can be reversed, so that the engine can be arranged at the front or back, as desired. It will also be seen that by arranging the machine on the two shoe `bed-plates it can be built irrespective of the space in which it IOO IIO

is to be finally located. The housings and v dispensed with and the mechanism geared to an intermediate clutch-shaft.

I claim as my inventionl. The combination in a plate-straightening machine, of housings, boxes mounted in said housings, a series of upper and lower straightening-rolls mounted in the boxes, means for driving the lower set of rolls, means for adjusting each of the upper rolls, and independent counterbalance mechanism for each end of each upper roll, substantially as set forth.

2. The combination in a plate-straightening machine, of housings, two rows of boxes in each of said housings, a series of rolls mounted in the lower boxes, means for driving said rolls, a series of rolls mounted in the boxes above the spaces between the lower rolls, and counterbalance mechanism for each end of each upper roll, substantially as set forth.

3. The combination ina plate-straightening machine, of the housing, the upper and lower rolls, screws for adjusting the upper rolls, gears on the screws meshing one with another so that when one screw is turned the series will be turned, a worm-wheel on an extension of one of the screws, a shaft having a worm meshing with the worm-wheel, a gear-wheel loose on the shaft, and clutching mechanism by which the wheel can be secured to the shaft, a wheel meshing with said gear-wheel and having a clutch-face, another gear-wheel also having a clutch-face adapted to engage the clutch-face of the intermediate gear, said gear-wheel being driven from the main driving-wheel of the machine, substantially as described.

4. The combination of the upper and lower rolls, a screw for adjusting one of the upper rolls, means for turning said screw, a nut mounted within the housing and through which the screw passes, mechanism for turning said nut, and adjustable means for holding the nut from turning in the housing, substantially as described.

5. The combination in a plate-straightening machine, of the housing, a series of lower rolls and a series of upper rolls above the spaces between the lower rolls, bushings for the lowerrolls, vertical channels between the bushings of the lower rolls for the passage of counterbalance mechanism for the upper rolls, and water-spaces surrounding the bushings of the lower rolls and communicating with the channels, substantially as described.

6. The combination of a driven wheel having a clutch-face, a gear-wheel also havinga clutch-face, means for moving one wheel toward or from the other, an operating-shaft, a gear-wheel loose on said shaft and meshing with the clutch gear-wheel, with means for connecting the said wheel to the operatingshaft, substantially as described.

7. The combination in a plate-straightening machine, of the two housings, a series of upper and lower straightening-rolls, means for driving the lower rolls, counterbalance mechanism for each end of eachupper roll, nuts in the housings, screws passing through the nuts and adapted to adjust the upper rolls, a frame mounted on each of the housings, a cross-shaft adapted to bearings in each frame and geared to the screw-shaft, a gearwheel on said cross-shaft, a stud projecting from one of the frames, a pinion meshing with the gear-wheel, a driven gear-wheel also on the stud, and friction mechanismbetween the driven gear-wheel and the pinion, sub-V stantially as described.

8. The combination in a plate-straightening machine, of the two housings, the upper and lower series of rolls mounted in the housings, a large gear-wheel mounted on thejournal of one of the lower rolls, the other rolls being geared to said driven roll, screws for adj usting the upper rolls, a cross-shaft extending from one housing to the other and geared to the screws, a gear-wheel meshing with the large gear-wheel of the lower roll, a pinion,` clutch mechanism between the gear-wheel and the pinion, a gear-wheel on the crossshaft meshing with the pinion, and a handwheel on the cross-shaft, substantially as described.

9. The combination in a plate-straightening machine, of housings, two sets of bearings in each housing, a series of upper rolls mounted in one set of bearings, and a series of lower rolls mounted in the other set, a large gear-wheel mounted on the journal of one of the lower rolls, the other rolls of the lower set being gearedto the said driven roll, counterbalance mechanism for the upper rolls, screws for adjusting the upper rolls, a

shaft extending from one housing to the other and geared to the several screws, a gearwheel meshing with the large gear-wheel of the lower roll, and connected to the transverse shaft, substantially7 as described.

In testimony whereof l have signed my name to this specification in the presence of two subscribing witnesses.

DAVID TOWNSEND.

Witnesses:

EDWD. RAMsEY, F. E. BEcHToLD.

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