US1762578A - Clamping device - Google Patents

Description

June 1o, 1930; J C. H. HISER 1,762,578-

CLAMPING DEVICE Filed NOV. 14. 192.7

Patented June 10, 1930 UNITED STATES PATENT OFFICE CHARLES H. HISER, F SPRINGFIELD, OI-IIO, ASSIGNOR TO THE SPRINGFIELD METALLIC GASKET COMPANY, 0F SPRINGFIELD, OHIO, A CORPORATION OF OHIO CLAMPING DEVICE Application filed November 14, 1927. Serial No. 233,123.

This invention relates to a clamping device adapted for use in connection with metallic caskets for securing the inner top or lid to the body of the casket in such a f' way as to furnish an air tight joint.

One of the objects of my invention is to provide a clamping device having a compressed gasket so associated with the cooperating surface as to fasten the clamping device in clamping position.

Another object of my invention is to provide a clamping device adapted to be rotated to and from its operative and inoperative positions and which when in its inoperative position will be maintained in a condition to be freely swung to its clamping position over the rim or ledge of the inner top of the casket.

In the accompanying drawings:

Fig. I is a top plan view of a portion of a metallic casket showing several of the improved clamping devices applied thereto.

Fig. 2 is a section on the line -a of Fig. l.

Fig. 3 is an enlarged section of some of the parts shown in Fig. 2.

Fig. 4 is a section on the line ZJ-b of Fig. 3.

Referring to the drawings, 1 represents 3u a portion of the body of the metallic casket,

the upper edge of the sheet metal sides of kwhich are inturned as indicated at 2 to provide a ledge, the inner edge of this ledge being united to the casket side by a sealing 35 plate 3 in the usual way. This inner ledge 2 forms a support both for an inner top t and for an outer top 5. It is the usual practice to clamp the inner top to the ledge 2, with an interposed sealing gasket 6 to eX- 4.0 clude air and to this end the edge of the inner top is bent and formed to provide a rim or ledge 7 to receive clamping devices carried by the main ledge 2.

Each of these clamping devices includes a e5 part constructed of sheet metal shaped to form a lever, the arms 8 and 9 of which are arranged at right-angles to each other.

The free end of the arm 9 is bent laterally to form a foot 10, while the edges of the 5o arm 8 are bent to form the walls 11 of a pocket on the under side of the arm to receive a packing 12 of any suitable material preferably felt. The inner end of the arm 8 is perforated to receive a cap-screw 13, the threaded end of which projects through an aperture in the ledge 2 and screws into the bar lll which extends the full length of the ledge 2 and is secured to the under side thereof by spot welding or in any other suitable way. A coil spring l5 f surrounds the cap screw and is interposed between the under side of the arm 8 and the ledge 2.

In operation, each of the arms 8 and its felt packing is turned at right-angles to the position shown to permit the inner top to be laid upon the packing 6, the spring holding the arm in raised position against the head of the cap screw, after which the arm is swung to the position shown so that the packing partly overlies the ledge 7. The cap-screw is then tightened to cause the packing to be compressed as soon as the foot l0 contacts the ledge 2, thus forcing the ledge upon the packing 5 to form an air tight joint.

By having a packing l2 but partly overlying the ledge 7 it will be seen that after this packing is compressed a shoulder is formed on the under surface of the packing which eifectively holds the clamping arm from turning, it being necessary to unfasten the cap screw before the arm can be swung away from the ledge. By the provision of the spring, the arm and its packing, when in inoperative position, are held in raised position so that it is an easy matter to swing the arm 8 of the lever and its packing over the ledge 7 when it is desired to clamp the inner top to position.

Having thus described my invention, I claim:

l. In a clamping device of the character described, the combination, with a surface to be clamped, of a clamping arm having a pocket, and a compressible packing in said pocket arranged to partly overhang said surface when clamped thereto to form a shoulder at the edge of said surface.

2. In a clamping device of the character Cil described, the combination, with a surface to be clamped, of a clamping member formed of a vertical arm and a horizontal arm,

Ya clamping screw passing loosely through said horizontal arm, a support intov which Vsaid screw is threaded, and a compressible packing carried by said horizontal arm arranged to partly overhang said surface when clamped thereto to form a shoulder at the edge of said surface to engage therewith.

8. In a clamping device of the character described, the combination, with a surface to be clamped, of a clamping member, and a eompressible member interposed between said clamping member and said surface, said compressible member being arranged to partly overhang said surface when clamped thereto to form a shoulder at the edge of said surface, to engage therewith, said clamping member having a part engaged with said compressible member.

In testimony whereof, I have hereunto set my hand this 25th day of October, 1927.

CHARLES H. HISER.

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