US 2197310 A
Description (OCR text may contain errors)
April 16, 1940. H. w. LINCOLN CLAMPING DEVICE Filed March 17, 1939 ATTORNEYS Patented Apr. 16, i940 unire @STATES The present invention relates to new and improved clamping devices.
The primary object of the invention resides in the provision of a clamp especially adapted for use by morticians to induce drainage of blood through a rubber tube and to eiectively clean Athe same.
A furtherv object aims to provide a clamp. that can be freely moved along an extension of rubber tubing or the like to create a suction therein to induce complete drainage of a liquid and cause it to ow through said tube.
The invention will be .fully and comprehensively understood from a consideration ofthe fol-v lowing detailed description when read in connection with the accompanying drawing which forms a part of the application.` l i In the drawing:
Figure 1 is a perspective view of the new and improved clamping device and illustrating the same in use. v
Figure 2 is a transverse sectional view of the clamp and shown in its normal position, and '1 Figure 3 is a sectional View' taken substantially on line 3--3 of Figure 2.
Referring to the drawing fora more detailed description thereof, the new and' improved clamp f generally designated by the reference numeral `5 comprises a pair of semi-elliptical shaped mem-l bers E and 'I, respectively, having formed on each side thereof ear portions 8 disposed in overlapping relation and receiving a `stud 9 for pivotally supporting the members 5 andv 7. It will be noted that the ear portions. 8 are formed ad jacent the rear end of the clamp and, in conjunction with the coiled tension spring IIJ which encircles the stud 9 having arms contacting the inner surfaceof each of the members'as indicated at II, maintains the front end of the clamp in a normally open position. The rear "faces I2 of each of the clamp members 6 and 'I,respe ctively,
simulate jaw members which are Anormally closed by the action of the spring I as more clearly shown in Figure 2 of the drawing. i The forward ,end I3 of the members ,B and 'I curve inwardly as indicated at I4 and in coopl eration with the angular platesv or brackets l form the means of supporting a pairof slightly concaved rollers IB. 'I'he brackets I5 are welded or otherwise secured to the inner face of the front end of each of the clamp members and form supporting means for one end of the trunnions I1 on which the rollers IG are mounted, the other end of said trunnicns being supported within the inwardly extending ends I4. The concave rollers tubing supported therebetween.
I6, which areformed of any desired material, are n preferably provided with aroughened tread-like surface as shown toprevent their slipping when moved transversely over( a rubber tube or the like I 8, and said rollers support and compress therebetween the rubbertubing ISfso that as the clampis moved along the extension of the tube there will be formed a partial vacuum'tof induce drainage of blood from the body.
' The outer surfaces of the forward end of the members vl and 'l have a knurled portion I9 servmetaldrain tube which includes an extension of rubber tubing is rst inserted in the vein and` the clamp is positioned lon the. rubber tube at thepoint nearest the junction of themetal drain plied tothe' front end of the clamp andthe concave rollers i6 will compress the portionV of the'y The clamp is then moved toward the end of the tube forcing out any matter contained ltherein and at the same v tube and the rubber tube. Pressureis then apitime setting up a partial vacuum which is sufv cient to induce drainage of'blood fromv the corpse.
' Itjis apparent that the concavity of the rollers I6" will maintain the tube centered with .respect vto theclamp at all times and atfthe same timev profvide efcient means for tightlyv compressing the tube to create the desired Vvacuum. By moving the clamp from the point nearest thejunction of the metal drain tube and the `rubber tube (away from the body) over the rubbertube several times flow of the liquid will be'positively induced and at the same time there will be forced out any li'q-A v uid within the tube. While the present invention has been illustrated and described for use by morticians, vit is to be understood that the same may be used as a means for positively and quickly creating a vacuumin a rubber hosetor tube regardless of the v nature of the liquid or from what point it is de sired to induce a flow of liquid. By reason of the fact that the clamp is especially light in weight and easily handledfit provides an effective-irlstrument forinducing the flow of any liquid when used as above described.
Also it will be understood, of course, by those skilled in the art that variations in the hereinabove described device involving the substitution of substantial equivalents for the devices described are intended to be comprehended within the spirit of the present invention and that the invention is capable of extended application and is not conned to the exact showingof the drawing nor to the precise construction described and. therefore, such changes and modications may be made therein as do not affect the spirit of the invention nor exceed the scope thereof as expressed in the appended claims.
What is claimed is:
1. A clamp of the character described compris` vend of said members being bent inwardly, a
bracket carried'by each of said members and spaced from said forward end, a concaved roller carried by each of said brackets and said forward end and adapted upon compressing said members to grippingly engage an article positioned therebetween, and means for `normally -maintaining said rollers in spaced relation.
HAWLEY W. LINCOLN.