US747746A - Brace. - Google Patents

Brace. Download PDF

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Publication number
US747746A
US747746A US13929803A US1903139298A US747746A US 747746 A US747746 A US 747746A US 13929803 A US13929803 A US 13929803A US 1903139298 A US1903139298 A US 1903139298A US 747746 A US747746 A US 747746A
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US
United States
Prior art keywords
jaws
shank
brace
sleeve
wings
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
US13929803A
Inventor
Arthur Sterling Ethelbirt Metcalf
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Individual
Original Assignee
Individual
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Publication date
Application filed by Individual filed Critical Individual
Priority to US13929803A priority Critical patent/US747746A/en
Application granted granted Critical
Publication of US747746A publication Critical patent/US747746A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/18—Chucks with simultaneously-acting jaws, whether or not also individually adjustable pivotally movable in planes containing the axis of the chuck
    • 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
    • Y10T279/18—Pivoted jaw

Definitions

  • FIG. 1 is a side elevation of a brace embodying my invention and showing the jaws as clamping a bit.
  • Fig. 2 is' a longitudinal section thereof.
  • Fig. 3 is a longitudinal section showing the jaws engaging with a nut.
  • Fig. 4 is a section on the line m a of Fig. 2.
  • Fig. 5 is an inner face view of one of the jaws
  • Fig. 6 is a perspective view showing the spring connection between the jaws.
  • 1 designates the shank of the brace, connected to the handle 2 by the ordinary ratchet mechanism 3.
  • This shank 1 is provided with a thread 4:, engaged by the interior thread of a sleeve 5, the outer end of which is curved or made cam shape,
  • each jaw is provided with Q a V-shaped channel 12 for receiving the angular end of a bit or drill, and these channels, as clearly indicated in Fig. 5, are longitudinally tapered. The outer ends of the jaws are caused to.
  • a spring here shown as consisting of a wire 13, passed through a perforation in the shank, one member of said spring being engaged with the'jaw 9, while the other branch or member of the spring engages with the jaw 10.
  • the jaws By moving the sleeve 5 outward against the portions 11 of the jaws the outer ends of the jaws will beclamped firmly in connection with the tool or with a nut. 'To engage firmly with a nut, the jaws have transversely-extended parallel jaws 14 at their inner sides.
  • a substantially v-shaped notch is formed between the wings 7 and 8, which by receiving the end of the tool will center the same, and the walls of the notch engaging with the angular end of the tool will reduce twisting strain on the jaws, and by making the notch V-shaped it will receive and hold the ends of different-sized tools.
  • a brace having a threaded shank, a
  • sleeve operating on the shank and having a cam end, opposite laterally-extended wings on said shank and having a notch between them, jaws pivoted to said wings, extensions on the jaws for engaging with the cam end of said sleeve, and a spring for'opening the jaws.
  • a brace having a threaded shank, a sleeve for operating on the shankand having a cam end, opposite laterally-extended wings a on said shank and having a V-shaped notch name to this specification in the presence of between them, jaws having recesses in which two subscribing witnesses. said wings extend, the said jaws being piv- H Oted to Said g curved projections on Said ARIHUR STERLING ETHELBIRI MD'ICALF. jaws for engaging with the cam end of the Witnesses:

Description

11 .747.7476. I PATENTBD DEG. 22,1903.
' A. s. E. METOALF.
BRACE.
APPLICATION FILED JAN. 18,1903.
H0 MODEL.
WITNESSES 1/7 751770;?
57% 7 I H IATTOHN U ITED STATES Patented December 22, 1903. I
PATENT OFF-ICE.
BRAC E.
SPECIFICATION forming part of Letters Patent No.- 747,746, dated December 22, 1903. Application filed January 16, 1903. Serial No. 139,298. (No model.)
I will describe a brace embodying my in-- vention and then point out the novel features in the appended claims. Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures. Figure 1 is a side elevation of a brace embodying my invention and showing the jaws as clamping a bit. Fig. 2 is' a longitudinal section thereof. Fig. 3 is a longitudinal section showing the jaws engaging with a nut.
Fig. 4 is a section on the line m a of Fig. 2.. Fig. 5 is an inner face view of one of the jaws, and Fig. 6 is a perspective view showing the spring connection between the jaws.
Referring to the drawings, 1 designates the shank of the brace, connected to the handle 2 by the ordinary ratchet mechanism 3. This shank 1 is provided with a thread 4:, engaged by the interior thread of a sleeve 5, the outer end of which is curved or made cam shape,
as indicated at 6, for engaging withthe jaws and operating them, as will be hereinafter described.
On the end of the shank 1 are oppositelyextended lateral wings 7 8. A jaw 9 is pivotally connected to the wing 7, and a jaw 10 is pivotally connected to the wing 8, the jaws, as clearly indicated in the drawings, being provided with recesses to receive said wings. The inner ends of the jaws, as indicated at 11, are extended downward below the pivotal points and are curved for engaging with the cam-surface 6 of the sleeve 5. Outward of the pivotal points each jaw is provided with Q a V-shaped channel 12 for receiving the angular end of a bit or drill, and these channels, as clearly indicated in Fig. 5, are longitudinally tapered. The outer ends of the jaws are caused to. move outward or from each other by means of a spring, here shown as consisting of a wire 13, passed through a perforation in the shank, one member of said spring being engaged with the'jaw 9, while the other branch or member of the spring engages with the jaw 10.
In the operation by moving the sleeve 5 downward on the shank or toward the. handle the jaws will be'separated by the spring, so as to receive the desired tool or to engage with a nut, and obviously the range of movement is such as to adapt the jaws to various sizes of nuts.
By moving the sleeve 5 outward against the portions 11 of the jaws the outer ends of the jaws will beclamped firmly in connection with the tool or with a nut. 'To engage firmly with a nut,,the jaws have transversely-extended parallel jaws 14 at their inner sides.
A substantially v-shaped notch is formed between the wings 7 and 8, which by receiving the end of the tool will center the same, and the walls of the notch engaging with the angular end of the tool will reduce twisting strain on the jaws, and by making the notch V-shaped it will receive and hold the ends of different-sized tools.
Having thus described my invention, I claim as new and desire to secure by Letters Patent 1.-A threaded shank, oppositely-extended wings on the end of said shank and having a V-shaped notch between them, jaws pivoted to the wings, and a jaw-operating sleeve on the threaded shank.
2. A brace having a threaded shank, a
sleeve operating on the shank and having a cam end, opposite laterally-extended wings on said shank and having a notch between them, jaws pivoted to said wings, extensions on the jaws for engaging with the cam end of said sleeve, and a spring for'opening the jaws.
3. A brace having a threaded shank, a sleeve for operating on the shankand having a cam end, opposite laterally-extended wings a on said shank and having a V-shaped notch name to this specification in the presence of between them, jaws having recesses in which two subscribing witnesses. said wings extend, the said jaws being piv- H Oted to Said g curved projections on Said ARIHUR STERLING ETHELBIRI MD'ICALF. jaws for engaging with the cam end of the Witnesses:
sleeve, and a spring for opening the jaws. JAMES GRAHAM, In testimony whereof I have signed my GEO. H. FLYNN.
US13929803A 1903-01-16 1903-01-16 Brace. Expired - Lifetime US747746A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13929803A US747746A (en) 1903-01-16 1903-01-16 Brace.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13929803A US747746A (en) 1903-01-16 1903-01-16 Brace.

Publications (1)

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US747746A true US747746A (en) 1903-12-22

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Family Applications (1)

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US13929803A Expired - Lifetime US747746A (en) 1903-01-16 1903-01-16 Brace.

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