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 numberUS841472 A
Publication typeGrant
Publication dateJan 15, 1907
Filing dateFeb 17, 1906
Priority dateFeb 17, 1906
Publication numberUS 841472 A, US 841472A, US-A-841472, US841472 A, US841472A
InventorsWilliam H Vanderherchen
Original AssigneeWilliam H Vanderherchen
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Implement for driving screw hooks and eyes.
US 841472 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

No. 841,472. PATENTED JAN. 15, 1907.






Specification of Letters Patent.

Patented Jan. 15, 1907.

Application filed February 17, 1906. Serial No. 301.695.

To all 1071 0111 it may concern.-

Be it known that I, WILLIAM H. VANDER- HEROI-IEN, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Implements for Driving Screw Hooks and Eyes, of which the following is a specification.

The object of my invention is to provide a simple and efficient tool whereby a screw-eye or a screw-hook can be firmly held while it is being screwed into position, the tool also providing for the placing of such screw-eyes o-r screw-hooks in places which would otherwise be inaccessible.

In the accompanying drawings, Figure 1 is a perspective View of a driving-tool for screw-hooks or screw-eyes constructed in accordance with my invention. Fig. 2 is a view, partly in side elevation and partly in transverse section, showing the parts in position for the insertion of a screweye into the driving-tool. Fig. 3 is a similar view showing the parts in the position assumed by them after the screw-eye had been locked in position in the driving-tool. Fig. 4 is an end view of the tool with the parts in the position shown in Fig. 2. Fig. 5 is a similar view, with the parts in the position shown in Fig. 3; and Figs. 6 and 7 are views similar to Figs. 3 and. 4, respectively, but illustrating another form of the tool.

In Figs. 1 to 5 of the drawings, 1. represents a stem suitably secured to an operatinghandle 2, which may constitute part of a pole or staff when it is desired to place the screw eye or hook in a position otherwise inaccessible.

The stem 1 has a head 3 with a transverse slot 4 in its outer end, and. mounted upon said head, so as to be capable of rotation thereon, is an inverted cup-shaped cap 5, whichalso has a transverse slot in its rounded outer end, the cap being retained longitudinally upon the head 3 by means of pins 7, projecting from said head into segmental slots 8 in the cap, as shown in Fig. 1, these slots 8 also serving to limit the extent of rotative movement of the cap on the head.

In order to apply the screw-eye to the implement, the cap 5 is turned to such position that its slot 6 is parallel with the slot 4 of the head, as shown in Figs. 2 and 4, and the eye is passed through the slot 6 and into the slot 4, as shown in Fig. 2. The cap 5 is then turned to the extent of a quarter-turn, so as to bring its slot 6 at a right angle to the slot 4, as shown in Figs. 3 and 5, the result being that, the eye of the screw is longitudinally confined within the slot 4, and by engagement with the walls of said slot is readily turned by means of the handle 2.

After the screw-stem has been driven home the implement is readily released from the eye by turning back the cap 5 until its slot 6 again registers with the slot 4 of the head 3 and then withdrawing the implement longitudinally until it is free from engagement with the eye.

In that form ofthe tool shown in Figs. 6 and 7 the cap 5 is secured to the head 3, and

a rotatable continuation 3 of said head, disposed within the cap 5, engages the head of the screw hook or eye. In this case no special manipulation is needed in order to lock the screw hook or eye to the tool, as the first partial turn of the handle 2 after the application of the head of said screw hook or eye to the tool effects this result.

An instrument of the character described provides for the use of both hands, one for supporting the instrument and the other for turning the same, whereas when the screw eye or hook is directly manipulated only one hand can be used, and difficulty is frequently experienced in getting a proper bite of the screw upon the wood at the start, especially if the wood is hard. The screw eye or hook, therefore, frequently drops from the hand in attempting to get a fresh hold upon the same, because the partial turn originally imparted to the screw has not been sufiicient to insure a proper supp0rting-hold of the same upon the wood. It will be evident that an implement of the character which I have devised effectually overcomes this objection.

1. In an implement for driving screw eyes or hooks, the combination of a handle having a head and a cap, the latter having a slot elongated to permit of the passage of an eye or hook and having its interior surface designed to conform to the shape of such an eye or hook, the portion of the head covered by the cap having an elongated recess shaped to hold a hook or eye from turning, one of the parts of the implement having a slot and the other a pin projecting into said slot and being rotatably mounted relatively to each other to permit of the slot in the cap and the recess of the head being brought into parallelism or placed at an angle to each other, substantially as specified.

2. In an implement for driving screw eyes or hooks, the combination of a head and cap for the end of the same, the cap being slotted for receiving an eye or hook and the head be ing provided with an elongated, transverse recess for holding the eye or hook from turning, said head having its engaging portion rotatably mounted within the cap, substantially as specified.

3. In an implement for driving screw eyes or hooks, the combination of a two-part head and a cap, the cap being slotted to receive an eye or hook, and the head having an elongated, transverse recess for holding the eye or hook from turning, one portion of the head being secured to the cap, and its hook and eye engaging portion rotatably mounted within the cap, substantially as specified.

In testimony whereof I havesigned my name to this specification in the presence of two subscribing witnesses.




Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4275621 *Oct 5, 1979Jun 30, 1981Mallott Sr Louis JImplement for attaching hangers
US5335569 *Mar 2, 1993Aug 9, 1994R. H. Rowley Co.Eye screw driving device
US5425193 *Sep 28, 1993Jun 20, 1995Gelb; Thomas A.Fishing lure tuning tool
US5507209 *Jun 19, 1995Apr 16, 1996Allen; Ronnie K.Sleeve-type screw holder and driver
US5899124 *Feb 4, 1997May 4, 1999Cross, Jr.; Donald LeeTree step driving tool
US6101905 *Jul 30, 1998Aug 15, 2000Hu; BobbyHook screw drivers
US6626068Jan 28, 2002Sep 30, 2003Mckivigan TimothyTool for installing a lag hook and method for cabling a tree
US6729210Jun 28, 2001May 4, 2004John L. MorrisDriver for eyebolts and hooks
US6951155Jan 2, 2003Oct 4, 2005Bobby HuHook screw driver
US7887548 *Dec 5, 2006Feb 15, 2011Aesculap Implant Systems, LlcScrew insertion guide tube with window
Cooperative ClassificationB25B23/12, Y10S81/901