US965433A

US965433A - Spacing device for punching-tables.

Info

Publication number: US965433A
Authority: US
Inventors: Forrest H Blanding
Original assignee: Allis Chalmers Corp
Current assignee: Allis Chalmers Corp
Priority date: 1909-02-23
Filing date: 1909-02-23
Publication date: 1910-07-26
Anticipated expiration: 1927-07-26

Description

P. H. BLANDING.

SPAGING DEVICE FOR PUNCHING TABLES.

APPLICATION 21mm 1 23.23, 1909.

965,433. Patented July 26, 1910.

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F. H. BLANDING.

SPAGING DEVICE FOR PUNGHING TABLES.

APPLICATION FILED I'EB.23, 1909.

965,433. Patented July 26,1910.

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FORREST H. BLANDING, OF CHICAGO, ILLINOIS, ASSIGNOR "IO ALLIS-GI-IALMERS COM- IPANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF NEW JERSEY.

SPACING DEVICE FOR PUNCI-IING-TABLES.

Specification of Letters Patent.

Application filed February 23, 1909.

To all whom it may concern:

Be it known that I, FORREST H. BLANDING, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Spacing Devices for Punching-Tables, of which the following is a specification.

This invention relates to improvements in the construction of spacing devices for punching tables.

The object of the invention is to procure a simple means of shifting plates under the punch so that a series ofholes may be spaced and punched as desired.

A clear conception of the inventlon can be obtained by referring to the accompanying drawings in which like reference characters designate the same parts in diiferent views.

Figure 1 is a fragmental planvlew of a punch and spacing device built according to the invention. Fig. 2 is an end elevation of the device shown in Fig. 1 with a section taken on the line II, II of Fig. 1, and'looking in the direction of the arrow. Fig. 3 is an elevation of the shifting wheel and stand, looking in the direction of the arrow Z, see Fig. 1. Fig. 4 is a section of the spacing table taken on line I, I, Fig. 1, looking in the direction of the arrow. Fig. 5 is a side elevation of the locking device, part being shown in section. Fig. 6 is an end elevation of the locking device shown in Fig. 5. Fig. 7 is a central vertical section of the mechanism shown in Figs. 5 and 6, being taken on the line V, V, of Fig. 6. r

The punch 1, see Figs. 1 and 2, having the spacing table placed in front of it, may be of any suitable construction depending upon the nature of the work to be done.

The spacing table is held in position by a series of foundation plates 39, see Figs. 1, 2, 4, which are embedded in concrete or other material. The blocks 38 which rest upon the plates 39, support the I-beams 7. These I-beams 7 may be of any length, depending upon the size of the plates to be punched, and are separated by the cross beams 36 which are bolted thereto.

A series of rollers 40, are placed upon the upper surface of the I-beams 7, these rollers 40 being kept in place by suitable distance pieces. The rollers 40 form supports for the I-

beams

4, 5, which form the sides of a movable table. The

beams

4, 5, have a third beam 6 placed between them and parallel thereto, the beam 6 being supported by the braces '37 which are attached to the

beams

4,5. The length of the

beams

4, 5, is determined by the maximum length of the plates to be punched, the length of the central beam 6 being slightly greater than that of the side beams 4,

Directly in front of the punch 1 and supported by the cross beams 36 and the angles 35, see Figs. 1 and 2, are two strips 34 which support a plate 33. This plate 33 supports the

bearings

31, 32, in which the shaft 9 rests. A helical gear 3 located between the

bearings

31, 32, is attached to the shaft 9 and meshes with a rack 22 which is fastened to the lower surface of the I-beam 6. The angularity of the shaft 9 is such that if it is rotated, the gear 3 meshing with the rack 22 will move the beam 6 and hence the entire movable table, in a direction parallel to the beams 7.

The shaft 9 being made of two parts has a coupling sleeve 10 and extends to some point outside of the spacing table and away from the working parts of the punch 1. The outer end of the shaft 9 is supported in a bearing, see Fig. 3, forming part of the bracket 12. This bracket 12 rests upon the foundation plate 11 which is anchored by bolts 23. The bracket 12 also forms a support for a sleeve 19 through which a shaft 14 passes. A hand wheel 13 is fastened to the upper part of this shaft 14 thus giving a means of rotating the shaft 14.

Two bevel gears 21, 20, are attached to the ends of the shafts 9, 14. The bevel gear 21 attachedto the horizontal shaft 9 meshes with the bevel gear 20 attached to the vertical shaft 14 so that any rotary motion given to the shaft 14 is transmitted to the shaft 9 through the bevel gears 21, 20.

Extending along the punch side of the I-beam 5, see Figs. 2, 4, and spaced therefrom by the blocks 43, see Fig. 5, is a templet 24. This templet 24 has several series of holes 25, 26, therein, the location of the holes in each series being the same as that desired in a series of holes to be punched.

The locking device, see Figs. 5, 6, 7, is composed of a body 2 which is fastened to the frame'of punch 1 in any suitable manner, as shown by means of bolts 69 passing through the flange 72. The location of the body 2 is such that its sides are perpendicular to and directly opposite the templet 24. Two holes which receive the pins 41, 42, pass through the body 2 perpendicular to the plane of the plate 24, and have their centers directly opposite the center lines of the series of holes 25, 26, in the templet 24. A plate 67 incloses the back of the holes in the body 2, this plate 67 also supporting a hook 65. A second plate 60 is attached to the side of body 2 and forms a support for a pivot 62 about which the angular arm 61 swings. The upper branch of this arm 61 supports a pivot 63 which forms a swing joint for a plate 48. The other branch of the arm 61 is connected to the rod 30 by a pin 66. A spiral tension spring 64, having one end fastened to the hook 65, is connected to the arm 61 near the pin 66 so that its tendency is to swing the arm 61 in an anti-clockwise direction about the pivot 62.

The plate 48 which is connected to the arm 61 by the pivot 63 lies flat upon the side of the body 2. The plate 48 is held in place by the pivot 63 and a plate 44 which is attached to the body 2. The plate 44 supports a pin 45 which in turn has a pin 46 fastened to it and projecting radially therefrom. A flat spring 55 which is also radial to the first pin 45 and perpendicular to the second pin 46, passes through a slot in the pin 45. The pin 45 may be revolved so as to allow the radial pin 46 to coact on either side of the set screw 47, thus throwing the spring 55 either above or below the horizontal plane of pin 45. The spring 55 extending away from the pin 45, passes between the pins 53 which are fastened to the plate 48. Any motion of the spring 55 will therefore be transmitted to the plate 48, causing it to swing about the pivot pin 63. The pins 95, 96, are set into the sides of the body 2, the distance between the pins 95, 96, being slightly, less than the greatest width of the plate 48.

The pins 41, 43, located in the holes in the body 2, have short pins 49, 50, projecting from their sides through slots 51, 52 in the casing 2. These pins 49, 50 are so located that when the plate 48 is in its upper position as shown, the pin 50 will coact in an upper slot of the plate 48. When the plate 48 is dropped down the pin 49 will coact in the slot 54 on the lower side of the plate 48. The springs 70, 71, located in back of the pins 41, 42, tend to force them out against the plate 24. As only one of the pins 41, 42, is in use at a time, the one not in use is drawn back and a suitable stop placed in the slot 51 or 52 against the side pins 49 or 50 respectively.

The connection 30 drops down along the side of the punch 1 to a crank 17 which is connected to the shaft 15. This shaft 15 is supported by the bearing 16 and extends to some point near the operating stand. A suitable lever 18 is connected to the shaft 15 near the stand.

In operating the device, the proper templet 24 is first placed upon the beam 5, and the pin 46 is set into one of its two positions, the pin 41, 42, not in use being withdrawn. As shown in Figs. 5, 6, 7, the lower pin 42 is withdrawn as the templet holes 25 are to be the efiective ones. The next step in the operation is to place the plate to be punched 27 see Fig. 2, upon the fasteners 8 and block up the punch so as to bring the plate 27 as near horizontal as possible. The movable table is then shifted to locate the first hole to be punched and the punch 1 is operated. The lever 18 is then forced down oscillating the shaft 15 and giving motion to the lever 17 which pulls upon the connection 30 to the arm 61. This stretches the spring 64 and pulls back the pivot pin 63, which in turn draws back the plate 48. The upper edge of the plate 48 coacts against the pin 95, thus forcing the plate 48 down. The pin 50 being engaged with the plate 48 and attached to templet pin 41, draws the templet pin 41 away from the templet 24 until the pin 95 has forced the plate 48 down enough to re lease the pin 50, when the pin 41 is forced against the templet 24 by the spring 7 0. The lever 18 is held down for a moment and before release of pin 41 the hand wheel 13 is turned. This motion is transmitted through the shaft 14, the bevel gears 20, 21, through the shaft 9 to the spiral gear 3. This spiral gear 3 moves the movable table through the medium of the rack 22 at the bottom of the beam 6. As the table is shifted, the lever 18 is released and the pin 50 again coacts in the slot in the plate 48. The hand wheel 13 is turned until the table has moved so that the pin 41 falls into the next hole 25 of the templet 24. The next hole is then punched into the plate 27, after which the operation is repeated.

It should be understood that it is not de sired to be limited to the exact details of construction shown and described, for obvious modifications will occur to a person skilled in the art.

It is claimed and desired to secure by Letters Patent:

1. In a spacing device, the combination of a movable table, a rack on said table, and a shifting means for said table comprising,

a rotatable shaft projecting angularly from table, the combination of a table, a locking pin for said table, and a reciprocating member automatically engaging and disengaging said pin at the limit respectively of reciprocation of said member.

4. In a locking device for a punching table, the combination of a table, a templet on said table having a plurality of series ofspaced openings, a plurality of locking pins corresponding to said series and registrable with said openings, a reciprocating member adjustable to determine the location of any of said pins, and means for holding the remaining pins inoperative.

5. In a locking device for a punching table, the combination of a table, a templet on said table having a plurality of series of spaced openings, a plurality of locking pins corresponding to said series and registrable with said openings, a reciprocating member adjustable to determine the location of any of said pins, means for holding the remaining pins inoperative, and spring means for holding said member in adjusted position.

6. The combination of a table, a templet thereon at the side, means for shifting said table, and means coacting with said templet for locking said table.

v In testimony whereof, I affix my signature in the presence of two witnesses.

FORREST H. BLANDING.

WVitnesses:

A. 0. CASE, G. F. DE WVEIN.