US2084220A - Screw driver - Google Patents

Screw driver Download PDF

Info

Publication number
US2084220A
US2084220A US107093A US10709336A US2084220A US 2084220 A US2084220 A US 2084220A US 107093 A US107093 A US 107093A US 10709336 A US10709336 A US 10709336A US 2084220 A US2084220 A US 2084220A
Authority
US
United States
Prior art keywords
bit
nut
slot
screw driver
strap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US107093A
Inventor
Schelot Norbert
Elmer E Vahle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US107093A priority Critical patent/US2084220A/en
Application granted granted Critical
Publication of US2084220A publication Critical patent/US2084220A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
    • B25B15/007—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with blade of flat or substantially flat cross-section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B15/00—Screwdrivers
    • B25B15/001—Screwdrivers characterised by material or shape of the tool bit
    • B25B15/002—Screwdrivers characterised by material or shape of the tool bit characterised by material used or surface finishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17761—Side detent
    • Y10T279/17786—Spring

Definitions

  • 'Ihis invention relates to screw drivers especially adapted for driving tempered screws into metallic bodies and has for the primary object the provision of a device of this character wherein the bit thereof is of a tempered material and adjustable and removable from the device so that as the bit wears it may be advanced into working position and when worn to an extent to render it unfit for further use will be automatically released to permit the placing in the device of a new bit of a similar construction.
  • this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.
  • FIG. 1 is a fragmentary side elevation illustrating a screw driver constructed in accordance with our invention.
  • Figure 2 is a view similar to Figure l, only partly in section, showing the head of the holding device for the bit.
  • Figure 3 is a vertical sectional View illustrating the device.
  • Figure 4 is a sectional View taken on the line 4-4 of Figure 1.
  • Figure 5 is a plan view illustrating a bit orl blade.
  • the numeral I indicates an externally screw threaded body of cylindrical formation, one end (not shown) is constructed to t a chuck of a power driven tool or if desired may be secured in a handle.
  • a head 3 mounted on the other end of the body and secured thereto by a pin 2 is a head 3 of substantially spherical shape provided with oppositely disposed beveled faces 4 and a flat face 5.
  • the body I has a slot 6 extending therethrough and opening outwardly through the last-named end of the body or the end on which the head 3 is mounted.
  • the flat face 5 of the head has a slot aligning with the slot 6.
  • bit or blade 1 Mounted in the slot 6 and protruding therefrom by way of the slot in the face 5 of the head is a bit or blade 1 having a work-engaging end 8 and oppositely arranged notches 9 located adjacent the other end thereof.
  • a lock nut I5 is threaded on the body to hold the strap against the nut I4.
  • the working end 8 of the bit or blade wears from use the latter may be advanced outwardly of the head by adjusting the nut I4 on the body and when the bit or blade is Worn to an extent that it is unfit for further use the angularly disposed ends of the strap I2 will ride on the curved faces of the head 3 and thereby become disengaged from the notches 9 and permit the bit or blade to pass freely from the slot 6.
  • a screw driver comprising a body having one end constructed to t a tool chuck and provided with a slot opening outwardly through the opposite end thereof, a bit received in said slot and protruding therefrom at said last-named end of the body, a nut threaded on the body, said bit having notches, a substantially U-shaped strap engageable with the nut and extending through the slot and having its ends bent angularly to engage in the notches, a follower engaging the nut and the bit and having forked ends to receive thev strap.
  • a screw driver comprising a body having one end constructed to fit a tool chuck and provided with a slot opening outwardly through the opposite end thereof, a bit received in said slot and protruding therefrom at said last-named end of the body, a nut threaded on the body, said bit having notches, a substantially U-shaped strap engageable with the nut and extending through the slot and having its ends bent angularly to engage in the notches, a follower engaging the nut and the bit and having forked ends to receive the strap, and a second nut threaded on the body to force the strap against the firstnamed nut.
  • a screw driver comprising a body having one end constructed to fit a tool chuck and provided with a slot opening outwardly through the opposite end thereof, a bit received in said slot and protruding therefrom at said last-named end of the body, a nut threaded on the body, said bit having notches, a substantially U-shaped strap engageable with the nut and extending through the slot and having its ends bent angularly to engage in the notches, a follower engaging the nut and the bit and having forked ends to receive the strap, a second nut threaded on the body to force the strap against the first-named nut, and a substantially spherical shaped head secured to the body to be engaged by the angularly related ends of the strap when said bit is substantially advanced outwardly of the body for disengaging said ends of the strap from the bit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Description

N. scHELoT ET A1. 2,084,220
SCREW DRIVER June 15, 1937.
Filed Oct. 22, 1936 ATTORNEYS Patented .une 15, 1937 UNITED STATES SCREW DRIVER Norbert Schelot and Elmer E. Vahle, St. Louis, M0.
Application October 2.2, 1936, Serial No. 107,093
3 Claims.
'Ihis invention relates to screw drivers especially adapted for driving tempered screws into metallic bodies and has for the primary object the provision of a device of this character wherein the bit thereof is of a tempered material and adjustable and removable from the device so that as the bit wears it may be advanced into working position and when worn to an extent to render it unfit for further use will be automatically released to permit the placing in the device of a new bit of a similar construction.
With these and other objects in view, this invention consists in certain novel features of construction, combination and arrangement of parts to be hereinafter more fully described and claimed.
For a complete understanding of our invention, reference is to be had to the following description and accompanying drawing, in which v Figure 1 is a fragmentary side elevation illustrating a screw driver constructed in accordance with our invention. l
Figure 2 is a view similar to Figure l, only partly in section, showing the head of the holding device for the bit.
Figure 3 is a vertical sectional View illustrating the device.
Figure 4 is a sectional View taken on the line 4-4 of Figure 1.
Figure 5 is a plan view illustrating a bit orl blade.
Referring in detail to the drawing, the numeral I indicates an externally screw threaded body of cylindrical formation, one end (not shown) is constructed to t a chuck of a power driven tool or if desired may be secured in a handle. Mounted on the other end of the body and secured thereto by a pin 2 is a head 3 of substantially spherical shape provided with oppositely disposed beveled faces 4 and a flat face 5. The body I has a slot 6 extending therethrough and opening outwardly through the last-named end of the body or the end on which the head 3 is mounted. The flat face 5 of the head has a slot aligning with the slot 6. Mounted in the slot 6 and protruding therefrom by way of the slot in the face 5 of the head is a bit or blade 1 having a work-engaging end 8 and oppositely arranged notches 9 located adjacent the other end thereof. The work engaging end of the bit or 50 with one end of the nut and the key or follower engages the other end of the nut. A lock nut I5 is threaded on the body to hold the strap against the nut I4.
In operation, as the working end 8 of the bit or blade wears from use the latter may be advanced outwardly of the head by adjusting the nut I4 on the body and when the bit or blade is Worn to an extent that it is unfit for further use the angularly disposed ends of the strap I2 will ride on the curved faces of the head 3 and thereby become disengaged from the notches 9 and permit the bit or blade to pass freely from the slot 6.
Having described the invention, we claim:
l. A screw driver comprising a body having one end constructed to t a tool chuck and provided with a slot opening outwardly through the opposite end thereof, a bit received in said slot and protruding therefrom at said last-named end of the body, a nut threaded on the body, said bit having notches, a substantially U-shaped strap engageable with the nut and extending through the slot and having its ends bent angularly to engage in the notches, a follower engaging the nut and the bit and having forked ends to receive thev strap.
2. A screw driver comprising a body having one end constructed to fit a tool chuck and provided with a slot opening outwardly through the opposite end thereof, a bit received in said slot and protruding therefrom at said last-named end of the body, a nut threaded on the body, said bit having notches, a substantially U-shaped strap engageable with the nut and extending through the slot and having its ends bent angularly to engage in the notches, a follower engaging the nut and the bit and having forked ends to receive the strap, and a second nut threaded on the body to force the strap against the firstnamed nut.
3. A screw driver comprising a body having one end constructed to fit a tool chuck and provided with a slot opening outwardly through the opposite end thereof, a bit received in said slot and protruding therefrom at said last-named end of the body, a nut threaded on the body, said bit having notches, a substantially U-shaped strap engageable with the nut and extending through the slot and having its ends bent angularly to engage in the notches, a follower engaging the nut and the bit and having forked ends to receive the strap, a second nut threaded on the body to force the strap against the first-named nut, and a substantially spherical shaped head secured to the body to be engaged by the angularly related ends of the strap when said bit is substantially advanced outwardly of the body for disengaging said ends of the strap from the bit.
NORBERT SCHELOT. ELMER E. VAI-ILE.
US107093A 1936-10-22 1936-10-22 Screw driver Expired - Lifetime US2084220A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US107093A US2084220A (en) 1936-10-22 1936-10-22 Screw driver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US107093A US2084220A (en) 1936-10-22 1936-10-22 Screw driver

Publications (1)

Publication Number Publication Date
US2084220A true US2084220A (en) 1937-06-15

Family

ID=22314791

Family Applications (1)

Application Number Title Priority Date Filing Date
US107093A Expired - Lifetime US2084220A (en) 1936-10-22 1936-10-22 Screw driver

Country Status (1)

Country Link
US (1) US2084220A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2702712A (en) * 1949-09-08 1955-02-22 Colmol Company Detachable toolholder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2702712A (en) * 1949-09-08 1955-02-22 Colmol Company Detachable toolholder

Similar Documents

Publication Publication Date Title
US2522217A (en) Composite bit device for screw drivers and the like
US2410971A (en) Screw driver
US2527492A (en) Tool and detachable handle therefor
US2430044A (en) Screw driver and the like
US2545237A (en) Punching tool
US2075162A (en) Rivet setting device
US2084220A (en) Screw driver
US2147032A (en) Tool for working tubing
US2347136A (en) Toolholder
US1690571A (en) Tool and tool retainer
US2506373A (en) Holder for cold chisels and the like
US2543441A (en) Cam action screw driver
US1581096A (en) Soft-nose screw
US1130121A (en) Rivet setting and displacing tool.
US3274674A (en) Valve guide removing and installing tool
US2061660A (en) Riveting tool
US1196252A (en) Chisel and punch holder.
US2801859A (en) Machine tools
US2193615A (en) Tool chuck
US1721129A (en) Adjusting means for threading dies
US2105757A (en) Boring tool
US2628415A (en) Toolholder
US2918833A (en) Drilling tool
US2037681A (en) Tool holder
US1592521A (en) Safety device for riveting hammers