US740100A

US740100A - Apparatus for handling forgings.

Info

Publication number: US740100A
Application number: US10643502A
Authority: US
Inventors: Robert F Devine
Original assignee: Individual
Current assignee: Individual
Priority date: 1902-05-08
Filing date: 1902-05-08
Publication date: 1903-09-29
Anticipated expiration: 1920-09-29

Description

PATENTED SEPT. 29,1903.

' R. F. DEVIN'E.

APPARATUS FOR. HANDLING FORGINGS.

APPLIOATIOH PIL'BD MAY 8, 1902.

4 SHEETS-SHEET l.

NN N. @N NM NM N Sw/ mm R5 5 m: Nonms vs'rsns co PNOTD-LITNOY. WASHINGTON, 0.1:.

PATENTED SEPT. 29, 1903.

. R. F. IRVINE. APPARATUS FOR HANDLING FORGINGS.

APPLICATION FILED MAY 3. 1902.

i 4 BHBETS SHI-JBT 2.

N0 MODEL.

MAUI/0W1 ZN/EGSES 7 m: mums Ptrins w moroumm WASHINGYON. a c.

PATENTBD SEPT. 29, 1903.

R. F. DEVINE.- APPARATUS FOR HANDLING PORGINGS.

APPLICATION FILED HAY 8. 1992.

4 SHEETS-SHEET 3.

H0 HODEL.

IIIVENTOZCOv I I m: Nouns PETERS co. FHOTO'LITHO wAsmnarcn. u. c,

.PATENTED SEPT 29, 1903.

No. 740,100. R. F. DEVINB.

APPARATUS FOR HANDLING FORGINGS.

APPLIOATIOK FILED M418, 1902.

' 4 snn'rs snnm 4.

no MODEL.

m: NoflilS Prrzns co, FNOTO-UTHO WASHINGYON. n. c,

I sliding jaws 3 3.

Patented September 29, 1903.

PATENT ROBERT FIDEVINE, or ELLWOOD CITY, PENNSYLVANIA.

' AYPVPARATUSFOR HANDLING FORGINGS."

srncrrrcn'rron forming part of Letters Patent No. 740,1 0, dated September 29, 1903.

To aZZ whom it may concern:

Be it known that I, ROBERT F. DEVINE, of Ellwood City, Lawrence county, Pennsylvania, have invented a new and useful Apparatus for Handling Forgings, of which the following is a full, clear, and exact description,

reference being had to the accompanying:

drawings, forming part of this specification, in which Figure 1 is a partial side elevation, partly in section, showing one form of my improved apparatus. Fig. 2 is a front elevation of-the same, and Fig. 3 is a cross-section showing the tipping mechanism. Fig. 4 is a partial side elevation showing the connections for moving the forgings longitudinally. Fig. 5

is an enlarged detail view of the sprocket wheel device I prefer to employ. Fig. '6 isan end view showing liners for the jaws;

tion, and is designed to aiford a holder which may be readily adapted to widely-different classes of forgings and to provide for adj ust-l ing the axis of rotation of the holder to correspond with the eccentricity of the different classes offorgings; further, to provide simple and effective mechanism fortilting the forging and for moving it endwise in connection with the means for rotating it as desired, and also to afford improved means for twisting the metal being forged.

In the drawings, referring to the form of Figs. 1 to 6, inclusive, 2 represents a tubular holder containing opposite longitudinally- Each of these jaws has a dovetailed connection with the interior of the cylinder, and the contacting surfaces of these jaws in the cylinder are tapered or inclined, as shown in Fig. 1. The front portions of the jaws are shown as having angular recesses to grip a variety of forms; but the jaws are removable and a number of aws of different shapes, all fitting in the same cylinder, will wheels to the other.

recessed, as before.

Application filed May 851902. '-Seria1No.106,485. (No model.)

be provided to fit different sizes and shapes of forgin gs.

The jaws'are moved longitudinally by link connections 4, with screw-threaded rods 5, which project through the rearhead 6 of the cylinder and are, provided with adjustingnuts 7. Then the proper jaws are inserted and the end of the forging placed between .them, the jaws are drawn rearwardly by the screw-bolts and the inclined converging faces move them toward each other to grip the piece.

2 To turn the forging, Iprovide the cylinder with a sprocket wheel or a plurality of sprocket-wheels, if necessary. Thus in Fig. 51 show a sprocket-wheel 8, which is splined upon the cylindrical shell 2, and also an eccentric sprocket-wheel 9, similarly splined to the shell, so that the supporting sprocketchain 10 may be changed from one ofthe By providing a positive connection between the chain and the holder I can lower the hammer on the forging and then by actuating the chain can twist the forging by the same means provided for rotating it. This positive connection I consider broadly new. adapted for forging duplex or triplex crankshaftsor other forgings having arms or pro .jections at different angles and without spe cial appliances for this purpose.

The eccentric sprocket-wheel has its axis arranged to register substantially with the axis of the eccentric portion of the forging.

Thus in thecase of forging a crank-shaft the supporting-chain would be placed on the con centric sprocket-wheel while forging the end portions and then be transferred to the eccentrio sprocket-wheel while forging the eccentric or crank portions of the shaft. In Fig. 5'Ihave shown the cylinder 2 as having four jaws 3- in order to fit the end portion of such forging, two of these jaws being angularly This feature of an eccentric wheel or portion of the cylinder forms an important part of my invention, as it does away with the present many difiiculties in forging metal having eccentric portions, and

I intend to cover the'same broadly as we'll-as.

the feature of using the removable jaws with in, the cylindrical holder. 7

The apparatus is thus I have shown the cylindrical holder in this form as composed of two semieylindrical halves secured together by bolts passing through intermeeting flanges 11, and the sprocket or other chain 10 leads upwardly to a sprocket-wheel or pulley 12, which may be raised or lowered by block-and-tackle mechanism 13, suspended from an overhead trolley 14, movable upon a swinging crane jib 15. The shaft of the wheel 12 is provided with a pulley 16, connected by sprocket-chain 17 to the pulley 18 on the trolley, the chain 17 extending in opposite directions over the wheel 18 and thence over guide-wheels 18 and to and around a wheel 15, which may be actuated by hand through gearing, as shown in Fig. 11. By these means the holder may be rotated as desired to turn the metal when it is at the level for forging.

The rear head 6 of the holder is formed integrally with a long pipe-section 19, having collars 20, secured to it on either side of a loose collar 21, having a depending finger 22. This finger is secured to or actuated by an endless chain 23, passing over end wheels 2-l beneath the ground level. The rear pulley 24 is on a shaft having a smaller wheel 25, connected by chain 26 with a wheel 27. The shaft of wheel 27 is provided with a pinion 2S, intermeshing with a toothed wheel 29, whose shaft is provided with an actuatinghandle 30. This handle is in the rear of the holder and convenient to the operator, who by turning the crank can move the forgings longitudinally upon the hammer-die.

In order to tip the forgings to allow longitudinal movement, I provide a cam device 31. (Shown in Figs. 1 and 3.) This cam is mounted on a shaft 32, supported in the arms of the hanger and having a pinion 34, inter-meshing with a toothed wheel 35, actuated by crank 36. The hanger 33 is provided with an upper yoke 37, having a roller 38, traveling upon a supplemental swinging jib 39, pivoted to the main jib 15. The yoke is braced by small rollers 40, traveling upon the under face of the I-beam forming the track. By turning the handle 36 the cam is forced down upon the tubular extension 19 and the forging is tilted upwardly to allow its being moved along on the anvil or die.

The form of the inner jaws within the holder may be varied widely. Thus in Fig. 6 I show the jaws 3 as being provided with liners 41 to enable them to fit the forging without removal or insertion of. other jaws.

In Figs. 7 and S I show the cylinder as provided with opposite pairs of yoke-shaped jaws 42. These yokes are of U shape, and their legs project through oppositely-located slots in the cylinder and are detachably secured to fillers 43. A screw 44 projects through each filler or cross-piece and engages screw-threads therein, its inner end bearing on a strengthening-plate 45, while its outer head is provided with holes to receive a rod for turnin In this form the end of the forging is slipped between the inner portions of the yokes, which are then pulled tight to grip it by turning the screw-bolts.

In the form of Figs. 9 and 10 the holder has a solid front end portion 46 with a vertical slot receiving links 47, arranged in pairs and pivoted to the holder and to the recessed jaws. The jaws are guided in the slot and are moved by pivoted rear links 48, connected to a rod 49, extending through the rear head and having a screw-threaded portion engaged by a nut 50. By turning the nut the jaws can be quickly adjusted and clamped.

Many other forms of jaws may be devised for use in connection with the cylindrical holder, which is turned to turnthe forging.

The ad vantages of my invention result from the simplicity of the apparatus and its adaptability to a great variety of shapes and sizes without changing the holder or shell. The liability to breakage is practically done away with and the expensive counterbalancing of eccentric pieces is not necessary on account of the use of the eccentric pulley or wheel on the shell. The device will turn square or angular pieces as easily as rounds, and the work may be handled with great economy. The device aifords a simple and convenient means for turning, tipping, and moving the forging longitudinally, and a sleeve balance-weight can be easily adjusted and fastened on the tubular extension of the holder without stopping the hammer.

One ormore sprocket-wheels or pulleys may be used on the cylinder, and these may be removable or secured to'it, but are preferably loose to allow longitudinal adjustment for variations in the weight, and the form and arran gement of the parts may be varied in many ways without departing from my invention.

I claim- 1. In forging apparatus, a holder for the end of the metal, comprising a shell, removable jaws within the shell, a hanger arranged to support the shell in horizontal position and hand-controlled mechanism for turning the shell part of a revolution, substantially as described.

2. In forging apparatus, an inclosing shell, sets of removable jaws arranged to fit within the shell, means for clamping the jaws upon the metal, a hanger arranged to support the shell inhorizontal position, and hand-controlled mechanism for turning the shell intermittently during the forging operation substantially as described.

3. In forging apparatus, a holder for the end of the metal having an eccentric annular portion, and hand-controlled mechanism for turning the holder part of a revolution; substantially as described.

4. In forging apparatus, a holder or shell having a concentric and an eccentric wheel thereon, and means for turning the same; substantially as described.

5. In forging apparatus, a shell or holder having inner removable jaws, an eccentric Wheel or annular portion on the shell, and a supporting and turning chain or connection extending around said wheel; substantially as described.

6. In forging apparatus, a holder, a chain device for supporting and rotating the holder,

. mechanical connections for moving the holder 7. In forging apparatus, a tubular holder having a rear extension, a projection upon the extension, mechanism having a chain connection arranged to act upon the projection to move the forging longitudinally, and tipping mechanism traveling with the holder; substantially as described.

8. In forging apparatus, a holder, a cam device arranged to act upon the rear portion of the same; and mechanism for actuating the cam to tip the forging; substantially as described. v

9. In forging apparatus, a holder, a chainsupport for rotating the same, and an overhead depending hanger having a cam device arranged to tip the forging; substantially as described. 7

10. In forging apparatus a cylindrical shell, removable jaws Within the shell arranged to grip the piece, an eccentric wheel or forging on the shell, a supporting and turning chain engaging said eccentric wheel, a rear extension for the holder, a cam device arranged to act upon said extension to tilt the metal, and means for moving the holder longitudinally; substantially as described.

11. In forging apparatus, a holder and a supporting-chain or flexible connection having a positive connection therewith, whereby the metal may be twisted while engaged by the forging apparatus; substantially as described.

12. In forging apparatus, a cylindrical holder having removable jaws, and a chain engaging projections upon the holder; sub stantially as described.

In testimony whereof I have hereunto set my hand.

ROBERT F. DEVINE.

\Vitnesses:

J. G. KRETH, TONY TURNER.