US3161338A - Slide feeds - Google Patents
Slide feeds Download PDFInfo
- Publication number
- US3161338A US3161338A US272096A US27209663A US3161338A US 3161338 A US3161338 A US 3161338A US 272096 A US272096 A US 272096A US 27209663 A US27209663 A US 27209663A US 3161338 A US3161338 A US 3161338A
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- US
- United States
- Prior art keywords
- feed block
- cam
- bar
- transversely
- gripper
- Prior art date
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- Expired - Lifetime
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/02—Advancing work in relation to the stroke of the die or tool
- B21D43/04—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work
- B21D43/10—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers
- B21D43/11—Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by grippers for feeding sheet or strip material
Definitions
- Special objects of the invention are to provide slide feed mechanism which will consist of but few, simple, direct acting parte and which will be positive in action in the stock gripping and stock releasing movements.
- Gther special objects of the invention are to provide a practical, efhcicnt slide feed, having the advantages nientioned and which can be produced at reasonable cost.
- FIG. l in the drawings is a broken plan View of two companion slide feeds constituting the invention applied to and in use on a metal forming machine, such as disclosed in the parent patent application Serial No. 131,916, now Patent No. 3,094,767.
- FIG. 2 is an enlarged broken part sectional View as on line 2 5', of FG. l, illustrating particularly the gearing for reciprocating the feed block.
- FIG. 3 is an enlarged broken plan and part sectional view of parts of the left hand feed mechanism appearing in FlG. 1.
- PEG. 4 is a broken sectional view on substantially the plane of line 4 4 of FIG. l, showing the gripper operating cam mechanism.
- FIG. 5 is a cross sectional detail of the feed block, illustrating particularly the cross slide carrying the gripper closing ⁇ cam.
- NGS. 6 and 7 are broken plan views of modified forms of gripper actuating mechanism.
- FIGS. 8 and 9 are broken part sectional views of the latter on substantially the planes of lines S-S and 9 9, respectively of FGS. 6 and 7.
- FIG. 1 In the general view, FIG. 1, two of the slide feeds are shown, feeding in stock from separate lines of supply into opposite ends of the forming machine.
- Each slide feed consists of a feed block 10 sliding on guide rods 11 and carrying a gripper lever 12 pivoted on the block at i3 in position to grip the stock against a wall 14 constituting the lixed jaw of the gripper.
- the gripper lever is rocked into holding engagement with the stock by a cam 15 engageable with roller lo on the free end of the lever, said cam having the relatively high and low cam shoulders i7, l5 for holding the lever in the closed stock gripping position or in the open stock released position.
- Tins gripper controlling cam is shown carried by a ice slide bolt 19 operable in the transverse guide passage 20 in the feed block.
- rlhis bolt has an extended end portion 21, FIG. 4, projecting from the side of the feed block and carrying dependent companion rollers 22 spaced to receive between them an opstanding rail Z3 on a plate or bar 24 which is reciprocated to impart the necessary opening and closing movements to the gripper cam.
- FlG. 3 shows how the bar 24 is supported for in and out movements on a pair of parallel swinging links 25 pivotally mounted on Ithe base of the machine on centers 26 pivotally connected with opposite ends of the bar at 27.
- this timing cam has cam slopes to effect opening and closing movements and dwell of the gripper in both the open and closed positions.
- leciprocation of the feed block is effected in the illustration from a cross shaft 37, FIG. 2, at the end of the machine geared at 38 to an upper shaft 39 carrying a crank disk all connected by pitman d1 with a lever 42 dependent from an upper rock shaft 43 carrying a dependent lever 44 pivotally connected by link 4S with a transverse pivot stud 46 on the feed block.
- This overhead drive of the feed block keeps the base i7 of the slide feed clear for mounting on the machine with which it is used and is otherwise desirable for adjustments and other attention.
- the parallel linkage for mounting and actuating the guide rail carrying bar may be varied, as shown in FiGS. 6, 7, 8 and 9.
- a spring 53, FlG. 8, acting on a rod 54.1 pivotally connected with the rocker holds this rocker with the roller 51 in riding engagement with the cam.
- connection between the timing cam and the guide rail bar Zlib is in the form of a rod 55 guided in a housing 56 containing the spring 57 for holding the cam roll engaged with the cam and in that said rod is connected with the swing link 25h on the center 58 offset to the outside or away from the companion swinging link.
- the construction is simple, consisting of few, direct acting parts cooperating to effect accurately timed opening and closing movements of the gripper and the holding of the gripper in either position, without externally applied force. Shifted in either position the high or the lower shoulder or step on this cam will retain the gripper lever in set position regardless of reciprocating movement of the feed block.
- Substantially all parts of the feeding unit may be mounted on a single base, readily applicable -to existing forming machines, particularly with rock shaft for reeiprocating the feed block arranged in the overhead relation shown.
- the parallel relation of the gripper operating bar the full stroke of the feed block enables opening andclosing of the gripper to be effected at any point or points in the travel of the block, either by design of the timing cam or by other means.
- a slide feed for metal working machines comprising the combination of a base,
- a cam mounted to slide transversely on said feed block and arranged to effect stock gripping and releasing action of said gripper, Y
- timing cam for reciprocating said bar transversely in f respect to the feed block to effect closing and opening'operation of the gripper on said feed block.
- a slide feed for metal working machines comprisingthe combination of v a base,
- a cam mounted to slide transversely on said feed block and arranged to effect stock gripping and releasing action of said grippen.
- a timing cam for reciprocating said bar transversely in respect to the feed block to effect closing and opening operation of the gripper on said feed block
- said stock gripper including an abutmentforming a stationary jaw element and a lever pivoted to cooperatetherewith as a movable jaw, said lever having a roller engageablel with said transversely sliding cam, and
- a slide feed for metal working machines comprising the combination of a base, 1
- a cam mounted to slide transversely on said feed block and arranged to effect stock gripping and releasing action of said gripper
- timing cam and follower being arranged to impart closing movements to said stock gripper
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Advancing Webs (AREA)
Description
E. GRIMM SLIDE FEEDS Dec. 15, 1964 5 Sheets-Sheet 1 Filed April l0, 1963 E. GRIMM SLIDE FEEDS Dec. 15, 196.4
Filed April lo, 1963 5 Sheets-Sheet 2 INVENTOR 5R/C GAD/MM 25 "lil" 1 ATTORNEY E. GRIMM SLIDE FEEDS Dec. 15, 1964 5 Sheets-Sheet 3 Filed April l0, 1965 om QN \M. QN
' INVENTOR Z5?/6' GAD/MM BY MEW;
ATTORNEY E. GRIMM SLIDE FEEDS Dec. 15, 1964 5 Sheets-Sheet 4 Filed April l0, 1963 Y lL RM E 0, f N i mw nl 0^ -wgwm n@ u w nl m QAM A m R E E. GRIMM SLIDE! FEEDS Dec. l5, 1964 Filed April 1o, 1963 4 5 Sheets-Sheet 5 Illlllllllllllllllllllzlill/IIIA y. l l n I ...2mm M MNHN Y@ X/ f@ United States Patent 3,161,333 SLHDE FEEDS Elric Grimm, East Grange, NJ., assigner, by mesne assignments, to Associated Patente-aes, lne., Ampere, NJ., a corporation of New Jersey Filed Apr. 1d, i963, Ser. No. 272,096 3 Claims. (Qi. 226-163) The invention herein disclosed relates to slide feeds and is a partial continuation of patent application Serial No. 13l,916, filed August 16, 1961, now Patent No. 3,094,767, the latter being a partial continuation of patent application Serial No. 837,912, tiled September 3, 1959, now abandoned,
Special objects of the invention are to provide slide feed mechanism which will consist of but few, simple, direct acting parte and which will be positive in action in the stock gripping and stock releasing movements.
Particularly it is a purpose of the invention to provide mechanism which will require but slight movement to effect the gripper closing and opening action and in which the gripper when closed upon the stock, will be secured in Ithat relation without requiring external holding force.
Gther special objects of the invention are to provide a practical, efhcicnt slide feed, having the advantages nientioned and which can be produced at reasonable cost.
rFhe foregoing and other desirable objects nave been accomplished by novel combinations and relations of elements as hereinafter described and claimed and illustrated by way of examples in the accompanying drawings.
The drawings referred to, forming part of this specification, illustrate present practical embodiments of the invention but structure may be modified and changed as regards such illustration, all within the true intent and scope of the invention as hereinafter defined and claimed.
FIG. l in the drawings is a broken plan View of two companion slide feeds constituting the invention applied to and in use on a metal forming machine, such as disclosed in the parent patent application Serial No. 131,916, now Patent No. 3,094,767.
FIG. 2 is an enlarged broken part sectional View as on line 2 5', of FG. l, illustrating particularly the gearing for reciprocating the feed block.
FIG. 3 is an enlarged broken plan and part sectional view of parts of the left hand feed mechanism appearing in FlG. 1.
PEG. 4 is a broken sectional view on substantially the plane of line 4 4 of FIG. l, showing the gripper operating cam mechanism.
FIG. 5 is a cross sectional detail of the feed block, illustrating particularly the cross slide carrying the gripper closing` cam.
NGS. 6 and 7 are broken plan views of modified forms of gripper actuating mechanism.
FIGS. 8 and 9 are broken part sectional views of the latter on substantially the planes of lines S-S and 9 9, respectively of FGS. 6 and 7.
In the general view, FIG. 1, two of the slide feeds are shown, feeding in stock from separate lines of supply into opposite ends of the forming machine.
Each slide feed consists of a feed block 10 sliding on guide rods 11 and carrying a gripper lever 12 pivoted on the block at i3 in position to grip the stock against a wall 14 constituting the lixed jaw of the gripper.
The gripper lever is rocked into holding engagement with the stock by a cam 15 engageable with roller lo on the free end of the lever, said cam having the relatively high and low cam shoulders i7, l5 for holding the lever in the closed stock gripping position or in the open stock released position.
Tins gripper controlling cam is shown carried by a ice slide bolt 19 operable in the transverse guide passage 20 in the feed block.
rlhis bolt has an extended end portion 21, FIG. 4, projecting from the side of the feed block and carrying dependent companion rollers 22 spaced to receive between them an opstanding rail Z3 on a plate or bar 24 which is reciprocated to impart the necessary opening and closing movements to the gripper cam.
FlG. 3 shows how the bar 24 is supported for in and out movements on a pair of parallel swinging links 25 pivotally mounted on Ithe base of the machine on centers 26 pivotally connected with opposite ends of the bar at 27.
.law opening and closing movements are imparted to the rail carrying bar 2A by a stud 2S projecting from the outer side of the bar, pivotally connected at 29 with an adjustable link 3l), FIG. 4, having pivotal engagement at 3l with a lever 32 pivoted to rock on center 33 and carrying a roller 34 in engagement with a timing cam 35 on the shaft 36 of the forming machine.
lt will be noted in FlG. 4 that this timing cam has cam slopes to effect opening and closing movements and dwell of the gripper in both the open and closed positions.
The parallel links 25, supporting the guide rail 23, hold this guide rail at all times parallel with the reciprocating line of movement of the feed block so that there is no binding action on the gripper closing cam and so that this cam and the rollers engaged with the rail are free to eifect positive accurate operation of the gripper.
leciprocation of the feed block is effected in the illustration from a cross shaft 37, FIG. 2, at the end of the machine geared at 38 to an upper shaft 39 carrying a crank disk all connected by pitman d1 with a lever 42 dependent from an upper rock shaft 43 carrying a dependent lever 44 pivotally connected by link 4S with a transverse pivot stud 46 on the feed block.
This overhead drive of the feed block keeps the base i7 of the slide feed clear for mounting on the machine with which it is used and is otherwise desirable for adjustments and other attention.
The parallel linkage for mounting and actuating the guide rail carrying bar may be varied, as shown in FiGS. 6, 7, 8 and 9.
in FlGS. 6 and 8 this bar, here designated 24a, is
' shown carried by parallel swinging links 25a, one of which, the one at the right in FG. 6, is equipped with a projecting arm 4S, extending toward the other link and connected by linkage 49 with a rocker Sti having a roller S1 in engagement with the cam 52..
A spring 53, FlG. 8, acting on a rod 54.1 pivotally connected with the rocker holds this rocker with the roller 51 in riding engagement with the cam.
The form of the invention shown in FlGS. 7 and 9 differs from that last described in that the connection between the timing cam and the guide rail bar Zlib is in the form of a rod 55 guided in a housing 56 containing the spring 57 for holding the cam roll engaged with the cam and in that said rod is connected with the swing link 25h on the center 58 offset to the outside or away from the companion swinging link.
ln all forms of the invention the construction is simple, consisting of few, direct acting parts cooperating to effect accurately timed opening and closing movements of the gripper and the holding of the gripper in either position, without externally applied force. Shifted in either position the high or the lower shoulder or step on this cam will retain the gripper lever in set position regardless of reciprocating movement of the feed block.
The positioning of the guide rail always parallel to the longitudinal travel of the feed block relieves this and related parts from any load in the reciprocating movements of the feed block.
The spring return on the cam follower, shown in FIGS. 8 and 9, keeps the guide rail carrier in accurately aligned relation in respect to the timing cam and the housing of 'such spring means as shown in these views is desirable mechanically and otherwise. Y
Substantially all parts of the feeding unit may be mounted on a single base, readily applicable -to existing forming machines, particularly with rock shaft for reeiprocating the feed block arranged in the overhead relation shown.
The operation of the slide feed as a whole is smooth and quiet, particularly so with the spring action last disclosed keeping the cam follower in close riding engagement with the timing cam.
The parallel relation of the gripper operating bar the full stroke of the feed block enables opening andclosing of the gripper to be effected at any point or points in the travel of the block, either by design of the timing cam or by other means.
What is claimed is:
1. A slide feed for metal working machines, comprising the combination of a base,
a feed block mounted for longitudinal reciprocation on said base, Y
an overhead rock shaft journaledV on said base above said feed block,
a lever dependent from said overhead rock shaft pivt otallyv connected at its lower end with said feedV block,
a stock gripper on said feed block,
a cam mounted to slide transversely on said feed block and arranged to effect stock gripping and releasing action of said gripper, Y
said transversely sliding cam projecting from one side of said feed block,
spaced rollers dependent from said projecting portion of said sliding cam,
a transversely shiftable bar for operating said sliding cam,
means mounting said bar so as always to extend yin a direction parallel to the line of longitudinal movement of said feed block comprising pivoted parallel links supporting said bar for transverse movement toward and away from said feed block and parallel with the line of longitudinal movement of said feed block,
a longitudinally extending rail on said bar in position Y,
a timing cam for reciprocating said bar transversely in f respect to the feed block to effect closing and opening'operation of the gripper on said feed block.
2. A slide feed for metal working machines, comprisingthe combination of v a base,
a feed block mounted on said base,
an overhead rock shaft journaled on said base above said feed block,
a lever dependent from said overhead rock shaftv pivotally connected at its lower end with said feed block,
a stock gripper on saidfeed block,
a cam mounted to slide transversely on said feed block and arranged to effect stock gripping and releasing action of said grippen.
said transversely sliding cam projecting from one side of said feed block,
spaced rollers dependent from said projecting portion of said slid-ing cam,
a transversely shiftable bar for operating said sliding cam,
for Alongitudinal reciprocation i means mounting saidbar so as always to extend in a direction yparallel to the line of longitudinal movement of said feed block comprising pivoted parallel links supporting rsaid bar for transverse movement rtoward and away from said feed block and parallel with the line of longitudinal movement of said feed block, Y
a longitudinally extending rail on said bar in position between said spaced rolls for shifting said sliding cam transversely in opposite directions said rail mounted so as to always extend parallel to the line of longitudinal movement of said feed block, and
a timing cam for reciprocating said bar transversely in respect to the feed block to effect closing and opening operation of the gripper on said feed block,
said stock gripper including an abutmentforming a stationary jaw element and a lever pivoted to cooperatetherewith as a movable jaw, said lever having a roller engageablel with said transversely sliding cam, and
spring means for holding said lever in position with said roller in engagement with said cam and for holding said transversely `shiftable parallel bar in cooperative relation with said timing cam.
3. A slide feed for metal working machines, comprising the combination of a base, 1
a feed block mounted for longitudinal reciprocation on said base,
an overhead rock shaft journaled on said base above said feed block,V
a lever dependent from said overhead rock shaft pivotally connected at its lower end with said feed block,
a stock gripper on said feed block,
a cam mounted to slide transversely on said feed block and arranged to effect stock gripping and releasing action of said gripper,
said transversely sliding cam projecting from one side of said feed block,
spaced rollers dependent from said projecting portion of said sliding cam, Y
a transversely shiftable bar for operating said sliding cam, i'
means mounting said bar so as always toextend in a direction parallel tofthe line of longitudinal movement-of said feed block comprising pivoted parallel Vlinks supporting said bar for transverse movement toward and away from said feed block and parallel with the line of longitudinal movement of said feed block, a
a Alongitudinally extending rail on said bar in position between said spaced rolls for shifting said sliding cam transversely in opposite directions said rail mounted so as to always extend parallel to the line of longitudinal movement of said feed block,
timing camfor reciprocating said bar transversely in respect to the feed block to effect closing and opening operation of the gripper on said feed block,
a cam .follower actuated by said timing cam,
a push-pull rod extending from said cam follower to one of said supporting links,
said timing cam and follower being arranged to impart closing movements to said stock gripper, and
spring means urging said push-pull rod in the opposite direction to effect opening movements of said stock gripper.
Olson June 21, 1921 1,883,513 Borton Oct. 18, 1932 2,884,119
Powers T- Apr. 28, 1959
Claims (1)
1. A SLIDE FEED FOR METAL WORKING MACHINES, COMPRISING THE COMBINATION OF A BASE, A FEED BLOCK MOUNTED FOR LONGITUDINAL RECIPROCATION ON SAID BASE, AN OVERHEAD ROCK SHAFT JOURNALED ON SAID BASE ABOVE SAID FEED BLOCK, A LEVER DEPENDENT FROM SAID OVERHEAD ROCK SHAFT PIVOTALLY CONNECTED AT ITS LOWER END WITH SAID FEED BLOCK, A STOCK GRIPPER ON SAID FEED BLOCK, A CAM MOUNTED TO SLIDE TRANSVERSELY ON SAID FEED BLOCK AND ARRANGED TO EFFECT STOCK GRIPPING AND RELEASING ACTION OF SAID GRIPPER, SAID TRANSVERSELY SLIDING CAM PROJECTING FROM ONE SIDE OF SAID FEED BLOCK, SPACED ROLLERS DEPENDENT FROM SAID PROJECTING PORTION OF SAID SLIDING CAM, A TRANSVERSELY SHIFTABLE BAR FOR OPERATING SAID SLIDING CAM, MEANS MOUNTING SAID BAR SO AS ALWAYS TO EXTEND IN A DIRECTION PARALLEL TO THE LINE OF LONGITUDINAL MOVEMENT OF SAID FEED BLOCK COMPRISING PIVOTED PARALLEL LINKS SUPPORTING SAID BAR FOR TRANSVERSE MOVEMENT TOWARD AND AWAY FROM SAID FEED BLOCK AND PARALLEL WITH THE LINE OF LONGITUDINAL MOVEMENT OF SAID FEED BLOCK, A LONGITUDINALLY EXTENDING RAIL ON SAID BAR IN POSITION BETWEEN SAID SPACED ROLLS FOR SHIFTING SAID SLIDING CAM TRANSVERSELY IN OPPOSITE DIRECTIONS SAID RAIL MOUNTED SO AS TO ALWAYS EXTEND PARALLEL TO THE LINE OF LONGITUDINAL MOVEMENT OF SAID FEED BLOCK, AND A TIMING CAM FOR RECIPROCATING SAID BAR TRANSVERSELY IN RESPECT TO THE FEED BLOCK TO EFFECT CLOSING AND OPENING OPERATION OF THE GRIPPER ON SAID FEED BLOCK.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US272096A US3161338A (en) | 1963-04-10 | 1963-04-10 | Slide feeds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US272096A US3161338A (en) | 1963-04-10 | 1963-04-10 | Slide feeds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3161338A true US3161338A (en) | 1964-12-15 |
Family
ID=23038391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US272096A Expired - Lifetime US3161338A (en) | 1963-04-10 | 1963-04-10 | Slide feeds |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US3161338A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3487988A (en) * | 1967-10-02 | 1970-01-06 | Baird Corp | Slide feed mechanism |
| FR2380086A1 (en) * | 1977-02-15 | 1978-09-08 | Bihler Otto | ADVANCING DEVICE FOR THE INTRODUCTION OF A MATERIAL, IN PARTICULAR TAPE OR CONTINUOUS WIRE, INTO A MACHINE OR DEVICE |
| US4552294A (en) * | 1982-12-18 | 1985-11-12 | R W M-Raster-Werkzeugmaschinen Gmbh | Gripping feeder for strip or wire stock |
| US5865359A (en) * | 1995-06-22 | 1999-02-02 | Sanyo Electric Co., Ltd | Tape feeder with controlled feed motion |
| US6446479B1 (en) * | 1999-12-10 | 2002-09-10 | Carlo Salvi & C. S.R.L. | Apparatus for handling forging machines |
| DE3925370B4 (en) * | 1988-08-03 | 2004-07-08 | The National Machinery Co., Tiffin | Material feed device for forging machines and. like. |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1382379A (en) * | 1920-06-17 | 1921-06-21 | A H Nilson Machine Co | Wire-forming machine |
| US1883513A (en) * | 1931-09-10 | 1932-10-18 | Associated Manufacturers Inc | Cutting and forming machine |
| US2884119A (en) * | 1956-09-05 | 1959-04-28 | Todd C | Fast feeding metal working machine |
-
1963
- 1963-04-10 US US272096A patent/US3161338A/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1382379A (en) * | 1920-06-17 | 1921-06-21 | A H Nilson Machine Co | Wire-forming machine |
| US1883513A (en) * | 1931-09-10 | 1932-10-18 | Associated Manufacturers Inc | Cutting and forming machine |
| US2884119A (en) * | 1956-09-05 | 1959-04-28 | Todd C | Fast feeding metal working machine |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3487988A (en) * | 1967-10-02 | 1970-01-06 | Baird Corp | Slide feed mechanism |
| FR2380086A1 (en) * | 1977-02-15 | 1978-09-08 | Bihler Otto | ADVANCING DEVICE FOR THE INTRODUCTION OF A MATERIAL, IN PARTICULAR TAPE OR CONTINUOUS WIRE, INTO A MACHINE OR DEVICE |
| US4552294A (en) * | 1982-12-18 | 1985-11-12 | R W M-Raster-Werkzeugmaschinen Gmbh | Gripping feeder for strip or wire stock |
| DE3925370B4 (en) * | 1988-08-03 | 2004-07-08 | The National Machinery Co., Tiffin | Material feed device for forging machines and. like. |
| US5865359A (en) * | 1995-06-22 | 1999-02-02 | Sanyo Electric Co., Ltd | Tape feeder with controlled feed motion |
| US6446479B1 (en) * | 1999-12-10 | 2002-09-10 | Carlo Salvi & C. S.R.L. | Apparatus for handling forging machines |
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