Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS973887 A
Publication typeGrant
Publication dateOct 25, 1910
Filing dateOct 16, 1909
Priority dateOct 16, 1909
Publication numberUS 973887 A, US 973887A, US-A-973887, US973887 A, US973887A
InventorsJoseph A Steinmetz
Original AssigneeJoseph A Steinmetz
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 973887 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)



Specification of Letters Patent.

Patented Oct. 25, 1910.

Application filed October 16, 1909. Serial No. 522,929.

To all whom it may concern:

Be it known that l, JOSEPH A. STEINMETZ, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented an Improved Pile-Shoe, of which the following is a specification.

My invention is a pile shoe having a socket provided with means, such asclaws or teeth, for holding the pile therein; a point provided with means, such as longitudinal grooves and ribs, for facilitating its penetratioi'l, and means, such as longitudinal flanges or fins, for preventing its twisting in being driven.

In the drawings, Figure 1 represents an elevation of a pile shoe embodying my improvements; Fig. 2 is a sectional view of the same taken on the line 22 of Fig. 1 with the pile removed; Fig. 3 is a sectional view taken on the line 33 of Fig. 1; and Fig. 4 is a sectional view taken on the line 4-4 of Fig. 1.

The shoe, as illustrated in the drawings, has the conical body 1 containing the sockets 2 which is provided with the inwardly ex tending teeth or claws 3. The shoe is forced on the end of the pile 4: which is engaged in the socket 2 by the teeth or claws 3, where by the shoe and pile are prevented from separating.

The tapered point 5 of the shoe is fluted by providing it with the longitudinally extending concave channels 6 symmetrically arranged, which form longitudinal ribs 7 of greater or less width, depending upon the width of the channels. These channels slope from the body of the shoe to the points end so as to throw out the material to be displaced in driving.

In the axial planes of the shoe, preferably lying between adjacent channels 6, are formed fins 8 extending beyond the general surface of the shoe and tapering into the body and point. The point thus formed facilitates the penetration of the shoe and the fins act to prevent the deviation of the shoe from its straight course as well as to reduce the tendency to twisting.

Having described my invention, I claim:

1. A pile shoe having a socketed body and a tapered point provided with sloping longitudinal channels.

2. A pile shoe having a socketed body, tapered point and outwardly extending fins, each of said fins tapering into said body and point.

3. A pile shoe having a socketed body and a point provided with sloping longitudinal channels, said shoe having outwardly extending longitudinal fins.

4. A pile shoe having a point provided with longitudinal ribs and concave channels between said ribs.

5. A pile shoe having a fluted point and a socket provided with claws.

In witness whereof I have hereunto set my name this fifteenth day of October, 1909, in the presence of the subscribing witnesses.



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2864241 *Dec 20, 1955Dec 16, 1958FioreDriving points for piles
US2874547 *Apr 18, 1956Feb 24, 1959FiorePile driving point and ram for open end pipe piles and h-beam bearing piles
US2904313 *Mar 12, 1957Sep 15, 1959Wisenbaker Lorenzer D VKey-seat reamer
US3194022 *Apr 21, 1961Jul 13, 1965Dougherty John JPile shell boot and mandrel plug point assembly
US4144941 *Sep 30, 1977Mar 20, 1979Ritter Lester LDirectional impact tool for tunneling
US4153380 *Aug 25, 1977May 8, 1979Hartman Gary RSoil penetration emitter for drip irrigation systems
US4729603 *Aug 14, 1986Mar 8, 1988Gerd ElfgenRound cutting tool for cutters
US7185461Mar 30, 2001Mar 6, 2007Kalitec Signalisation Inc.Anchoring member for a support post
US7225585 *Sep 10, 2004Jun 5, 2007Esmail ZayeratabatGround insertion plant stake support and deep root feeder
US20060053690 *Sep 10, 2004Mar 16, 2006Esmail ZayeratabatGround insertion plant stake support and deep root feeder
Cooperative ClassificationE02D5/72