US1433427A - Attachment for screw drivers - Google Patents

Description

C. E. SWANEY AND R. H. MULFORD ATTACHMENT FOR SCREW DRIVERS.

APPLICATION FILED APR. 4. 1922.

M Patented 0011;. 24, 1922 Mhurles E. Swumey mwlumd ulfw rd INV ENTORS ATTORNEY Patented Uct. E l, i922.

onannns n. swalvnr AND nowrinnn n. ivrunronn, or BRIDGETON new JERSEY.

I ATTACHMENT FOR'SCRE'W DRIVERS.

United States residing at Bridgeton, in the county of Cumberland and State of New Jersey, have invented new and useful Improvements in Attachments for Screw Drivers, of which the following is a specification.

This invention relates to a novel attachment for screw drivers, the same providing a means for holding a screw in proper position. withrespejct to the bit of the blade of the screw driver, while the-screw is being driven.

A further objectof this invention is to provide an attachment of the foregoin character which consists of a resilient hold ing member for removable attachment to the shank of a screw driver by aco-operating resilient member, the said resilient member engaging opposite portions of the screw driver shank, while the first mentioned resilient member is provided with a downwardly extending lip adapted to engage the side walls of the screw to hold same in a fixed position with respect to the bit or blade of the driver when positioned to drive the screw.

Furthermore, the said first mentioned resilient member is also provided at its outer end with a downwardly extending notched out portion for engagement on the shank of the screw driver, said notched out portion being adapted to prevent turning of the attached screw with respect to the shank of the driver.

With the foregoing and other objects in view ouriinvention consists essentially of a novel attachment of construction, combination and arrangement of parts hereinafter more fully described and more particularly defined by the appended claims.

In the further disclosure of our invention reference is to be had to the accompanying sheet of explanatory drawings constituting a part of this specification and in which like characters of reference designates the same or corresponding parts in all the views.

Figure 1 is an elevational view of our novel attachment for screw drivers as used in connection with a screw driver and clearly showing the manner of holding the screw to the bit or bladeof said screw driver.

Figure 2 is a top plan view to an enlarged scale with our novel screw driver attachment; and,

hpplicationfiled April 4, 1922. Serial No. 549,607.

Figure 3 is an end view of the attachment looking in from the left-hand side'of Figure According to ourinvention, and as illustrated, our novel attachment consists of a flat elongated resilient member 1 the extreme end portions 3 and 4 thereof being bent downwardly to form lip portions that are notched out at 5 and 6. The function of the bent end notched out portions 3 and 4 will be more fully hereinafter referred to.

To hold the resilient member 1 with respect to the shank 7 of the screw driver we provide a second resilient member 8 which is a piece of'spring wire-see Figure 2 of the g drawings- -said wire being formed with a central transverse portion 9, which portion 9 isheld to said memberl by a rectangular clip 10. thereby holding the member 8 against longitudinal movement with respect to the member 1. If desirable the portion 9 of the holding member 8 may be free to turn with respect to the clip 10 and the member 1. The holding member 8 is bent at right angles to provide outwardly extending arms 12 and 11 which are arranged adjacent the op poslte edges of the member 1, the free ends of the arms 12 and 11 being bent to form hooked orlooped portions which are adapted to resiliently engage a portion of the shank opposite that portion on which the member is seated. The ends of the arms 12 and 11 are formed with hooked portions conformed to the shape of the cross section of the shank of the screw driver which is usually circular in cross section.

The outer end of the shank 7 is formed with the usual bit or blade 15 which is adapted to engage in the slot of the screw 16 as shown in Figure 1, the shank being carried by a hand-hold 17 for holding screw driver in the use of the same.

The downwardly bent portions 4 having the notched out portion 6 engages the shank 7, said shank being positioned in said notched out portion to prevent turning of the attachment with respect to the said shank.

The downwardly bent portion 3 ofthe resilient member 1 extends slightly beyond the end of the bit and is adapted to engage the side wall of the screw to hold the same with respect to the bit of the screw driver when driving the same.

From the foregoing description it will be readily seen that by our invention there is provided a novel and very effective means for holding the screw to a screw driver when driving the same and while we have shown and described oneparticular embodiment of the same we wish it clearly understood that various changes may be made in order to adapt our invention to diiterent sizes and forms of screw drivers.

Having described our invention, what we claim as new and desire to secure by Letters Patent is:

1. A screw driver attachment of the character hereinbefore described which comprises an elongated resilient member, said member being formed at its forward rear portions with downwardly extending lips, said forward lips being adapted to engage the side wall .or shank of a screw to hold the same with respect to the bit or blade of the shank and said rear lip being notched out and engaging the aforesaid screw driver shank, While said forward lip is similarly notched and adapted to engage the side wall or shank of a screw to hold the same with respect to the bit or blade of the shank, a co-operating resilient member carried by said first mentioned resilient member, said co-operating member being looped around the body of the said shank adjacent the opposite ends of said first mentioned resilient member and adapted to hold the attachment in cooperative relation to said shank and screw.

2. A screw driver attachment of the character hereinbefore described which comprises an elongated resilient member, said member being formed at its forward and rear portions with downwardly extending lips, said forward lip being adapted to engage the side wall or shank of a screw to hold the same with respect to the bit or blade of the shank and said rear lip being notched out and engaging the aforesaid screw driver shank, a co-operating resilient member carried by said first mentioned resilient member, and engaging opposite portions of said shank to hold the attachment to said shank of the screw driver, said downwardly extending lip portions of said elongated resilient member having oppositely disposed hooked arms for engaging the shank of: the screw driver.

In testimony whereof we afiix our signatures.

CHARLES E. SWANEY. ROWLAND H. MULFORD.

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