US951324A - Tool-head clamp. - Google Patents

Tool-head clamp. Download PDF

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Publication number
US951324A
US951324A US52025809A US1909520258A US951324A US 951324 A US951324 A US 951324A US 52025809 A US52025809 A US 52025809A US 1909520258 A US1909520258 A US 1909520258A US 951324 A US951324 A US 951324A
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United States
Prior art keywords
tool
handle
head
head clamp
shank
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
US52025809A
Inventor
Ernest J Mayer
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Individual
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Individual
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Priority to US52025809A priority Critical patent/US951324A/en
Application granted granted Critical
Publication of US951324A publication Critical patent/US951324A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B1/00—Hand tools
    • A01B1/02—Spades; Shovels
    • A01B1/022—Collapsible; extensible; combinations with other tools
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32262—At selected angle
    • Y10T403/32319—At selected angle including pivot stud
    • Y10T403/32327—At selected angle including pivot stud including radially spaced detent or latch component
    • Y10T403/32336—Engaging notch or recess in outer periphery of component

Definitions

  • This invention relates to improvements in clamping devices for holding tools in different angular positions with respect to a handle, whereby a tool such as a spade may be converted into a hoe, or tools such as a pitch fork may be converted into a rake.
  • the object of the invention is to provide a simple and inexpensive device of this character which will rigidly secure the tool in adjusted position with respect to the handle, and which may be quickly and easily operated to release or fasten the tool.
  • Figure l is a perspective view of one embodiment of my invention showing it uniting a spade head or blade to a handle so that the device may be converted into a hoe;
  • Fig. 2 is a longitudinal section showing the arts adjusted for use as a hoe;
  • Fig. 3 is a cetail section taken on the plane indicated by the line 3-3 in Fig. 2, and
  • Fig. 4 is a perspective view of the cam or eccentric lever.
  • l denotes a suitable handle and 2 a tool which may be a spade head or blade, a pitch fork head, etc.
  • Said tool has a shank 3 formed with one or more curved seats 4t to receive a cam or eccentric clamping lever 5, whereby the tool may be rigidly clamped to the handle l.
  • the latter is made of wood as shown its outer or lower end has secured to its opposite sides metal straps 6, between which the shank 3 and lever 5 are arranged and mounted on pivots 7, 8, as clearly shown in Fig. 2.
  • the straps 6 have their inner portions curved transversely to conform to the curvature of the handle l and secured by transverse fastenings 9, while the outer ends of said straps 6 are offset laterally and have flat parallel Specification of Letters Patent.
  • the shank 3 is formed integral with it by forming the central portion of the upper edge of the metal blade-plate with a comparatively broad tongue and then folding such tongue upon itself as shown at 10 to reinforce and strengthen ⁇ the shank produced thereby.
  • the cam or eccentric seats i are shown as disposed in planes approximately at right angles to each other so that the blade or tool 2 may be disposed either in substantial longitudinal alinement with the handle l as shown in Fig. 1, or substantially at right angles thereto as shown in Fig. 2.
  • the clamp lever 5 is pivoted nearer to one of its ends which is shaped to form a cam l1 to enter one of the seats 4, and the other or long end of said lever has its extremity bent upon itself to provide a finger loop 12 as shown more clearly in Fig. 4.
  • my invention provides an exceedingly simple and practical tool head clamping device, by means of which a tool may be securely held in either of one or more operative positions or angles with respect to its handle, and that when fastened by the device, the tool will be held rigidly against casual displacement.
  • a device of the character described comprising a handle, spaced straps projecting from one end thereof, a tool head having a plate formed at its upper edge with a tongue folded upon itself to provide a projecting shank, said shank being disposed between the ends of said strap and formed with curved notches disposed in planes at right angles to each other, a pivot passed through said straps and said shanks, a second pivot passed through said straps, and a lever mounted on said second pivot and having a cam-shaped end to enter either one of said notches in the shank to frictionally clamp the tool in adjusted position.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Knives (AREA)

Description

E. J. MAYER.
TOOL HEAD CLAMP.
APPLICATION FILED SEPT. 30, 1909.
Patented Mar. 8
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Vlio
UNITED STATES PATENT FFTCE.
ERNEST J'. MAYER, 0F UNDERCLIFFE, COLORADO.
TOOL-HEAD CLAMP.
To all whom it may concern:
Be it known that I, ERNEST J. MAYER, a citizen of the United States, residing at Undercliffe, in the county of Pueblo and State of Colorado, have invented certain new and useful Improvements in Tool-Head Clamps, of which the following is a specification, reference beino had to the accompanying drawings.
This invention relates to improvements in clamping devices for holding tools in different angular positions with respect to a handle, whereby a tool such as a spade may be converted into a hoe, or tools such as a pitch fork may be converted into a rake.
The object of the invention is to provide a simple and inexpensive device of this character which will rigidly secure the tool in adjusted position with respect to the handle, and which may be quickly and easily operated to release or fasten the tool.
lVith the above and other objects in view, the invention consists of the novel construction, combination and arrangement of parts hereinafter fully described and claimed, and illustrated in the accompanying drawing in which- Figure l is a perspective view of one embodiment of my invention showing it uniting a spade head or blade to a handle so that the device may be converted into a hoe; Fig. 2 is a longitudinal section showing the arts adjusted for use as a hoe; Fig. 3 is a cetail section taken on the plane indicated by the line 3-3 in Fig. 2, and Fig. 4 is a perspective view of the cam or eccentric lever.
Referring more particularly to the drawings, l denotes a suitable handle and 2 a tool which may be a spade head or blade, a pitch fork head, etc. Said tool has a shank 3 formed with one or more curved seats 4t to receive a cam or eccentric clamping lever 5, whereby the tool may be rigidly clamped to the handle l. When the latter is made of wood as shown its outer or lower end has secured to its opposite sides metal straps 6, between which the shank 3 and lever 5 are arranged and mounted on pivots 7, 8, as clearly shown in Fig. 2. As here shown the straps 6 have their inner portions curved transversely to conform to the curvature of the handle l and secured by transverse fastenings 9, while the outer ends of said straps 6 are offset laterally and have flat parallel Specification of Letters Patent.
Application filed September 30, 1909.
Patented Mar. 8, 1910.
Serial No. 520,258.
portions to receive the pivots 7, 8. When the tool 2 is in the form of a spade blade, the shank 3 is formed integral with it by forming the central portion of the upper edge of the metal blade-plate with a comparatively broad tongue and then folding such tongue upon itself as shown at 10 to reinforce and strengthen` the shank produced thereby. The cam or eccentric seats i are shown as disposed in planes approximately at right angles to each other so that the blade or tool 2 may be disposed either in substantial longitudinal alinement with the handle l as shown in Fig. 1, or substantially at right angles thereto as shown in Fig. 2. The clamp lever 5 is pivoted nearer to one of its ends which is shaped to form a cam l1 to enter one of the seats 4, and the other or long end of said lever has its extremity bent upon itself to provide a finger loop 12 as shown more clearly in Fig. 4.
From the foregoing it will be seen that my invention provides an exceedingly simple and practical tool head clamping device, by means of which a tool may be securely held in either of one or more operative positions or angles with respect to its handle, and that when fastened by the device, the tool will be held rigidly against casual displacement.
Having thus described the invention what is claimed is:
A device of the character described comprising a handle, spaced straps projecting from one end thereof, a tool head having a plate formed at its upper edge with a tongue folded upon itself to provide a projecting shank, said shank being disposed between the ends of said strap and formed with curved notches disposed in planes at right angles to each other, a pivot passed through said straps and said shanks, a second pivot passed through said straps, and a lever mounted on said second pivot and having a cam-shaped end to enter either one of said notches in the shank to frictionally clamp the tool in adjusted position.
Tn testimony whereof I hereunto affix my signature in the presence of two witnesses.
ERNEST J. MAYER.
Witnesses:
J. B. HARRIS, O. C. TAYLOR. f U
US52025809A 1909-09-30 1909-09-30 Tool-head clamp. Expired - Lifetime US951324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US52025809A US951324A (en) 1909-09-30 1909-09-30 Tool-head clamp.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US52025809A US951324A (en) 1909-09-30 1909-09-30 Tool-head clamp.

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US951324A true US951324A (en) 1910-03-08

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Application Number Title Priority Date Filing Date
US52025809A Expired - Lifetime US951324A (en) 1909-09-30 1909-09-30 Tool-head clamp.

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475757A (en) * 1980-12-11 1984-10-09 Gaston Glock Spade
US4573655A (en) * 1984-11-08 1986-03-04 Sekula Vulic Swivel clamp
USD976662S1 (en) * 2021-01-21 2023-01-31 Thomas De Rouchie Digging tool

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4475757A (en) * 1980-12-11 1984-10-09 Gaston Glock Spade
US4573655A (en) * 1984-11-08 1986-03-04 Sekula Vulic Swivel clamp
USD976662S1 (en) * 2021-01-21 2023-01-31 Thomas De Rouchie Digging tool

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