US1139472A - Hoe. - Google Patents

Hoe. Download PDF

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Publication number
US1139472A
US1139472A US83094914A US1914830949A US1139472A US 1139472 A US1139472 A US 1139472A US 83094914 A US83094914 A US 83094914A US 1914830949 A US1914830949 A US 1914830949A US 1139472 A US1139472 A US 1139472A
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US
United States
Prior art keywords
hoe
blade
neck
groove
butt
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
US83094914A
Inventor
Erich Arnold
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
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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 US83094914A priority Critical patent/US1139472A/en
Application granted granted Critical
Publication of US1139472A publication Critical patent/US1139472A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
    • F16B12/10—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like
    • F16B12/12—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics
    • 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
    • A01B1/22—Attaching the blades or the like to handles; Interchangeable or adjustable blades
    • A01B1/227—Interchangeable blades
    • 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
    • Y10T403/46—Rod end to transverse side of member

Definitions

  • This invention relates to an improved hoe, of the kind having a detachable blade which can be clamped fast in the neck of the hoe.
  • Figure 1 is a sectional side view of one form, and Fig. 2 a fragmentary end view of the same; Fig. 3 is a sectional side view of a modified form, and Fig. 4: a fragmentary end view of the same.
  • the present invention relates to such a frictional fastening device, in which however the friction is increased by pressing the upper end of the blade into an inclined groove in the hoe neck and thus tensioning the blade.
  • the blade When using such hoes, the blade is always pressed firmer into the hoe neck and can thus not be lost.
  • the end of the socket 1 (Fig. 1), which serves for the reception of a handle, carries an outer tongue 2, which is passed through a square hole 3 in the blade 4 and adapted to bear against the outer side 6 of the latter.
  • the butt-bearing 5 of the hoe neck bears then at the same time against the other side 7 of the blade.
  • the projection. 8 forms a groove 9, which is inclined at a trifling angle toward the plane of the blade and into which the upper part of the blade is shifted until the rounded edge of the same strikes against the incline of the groove and presses the blade against the two adjacent surfaces of the projection 2 and butt-bearing 5, whereby the blade is completely clamped fast.
  • FIGs. 3 and 4 Another constructional form is shown in Figs. 3 and 4:, in which the tongue 2 is arranged on the inner side of the hoe neck and the blade 4 is inserted from this side, while the butt-bearing 5 is omitted.
  • the inclined groove 9 has in this arrangement its incli- 4 nation angle oppositely directed to that shown in Fig. 1.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Scissors And Nippers (AREA)

Description

E. ARNOLD.
HOE.
APPLICATION FILED APR.10. 19M.
Patented May 18, 1915.
Jaezr/onigz esses- ORR-'5 PE 0.. PHOTC-LITHO.. WASHINGTON. u C.
EBICI-I ARNOLD, OF BERLIN, GERMANY.
HOE.
Specification of Letters Patent.
Patented May 18, 1915.
Application filed April 10, 1914. Serial No. 830,949.
To all whom it may concern:
Be it known that I, Enron ARNOLD, a subject of the German Emperor, and resident of Berlin, Germany, have invented certain new and useful Improvements in Hoes, of which the following is a specification.
This invention relates to an improved hoe, of the kind having a detachable blade which can be clamped fast in the neck of the hoe.
The accompanying drawing shows the improved hoe.
Figure 1 is a sectional side view of one form, and Fig. 2 a fragmentary end view of the same; Fig. 3 is a sectional side view of a modified form, and Fig. 4: a fragmentary end view of the same.
The attachment or fastening of the blade to the neck of the hoe was hitherto effected by means of screws or wedges. These constructions have the drawback that the screws and wedges got frequently lost during the use of the implement. An improvement in the fastening of hoe blades was then created by forming the hoe neck itself as a wedge and inserting the same into corresponding wedge-eyes of the blade. But to this construction the drawback occurs that the wedge-eyes could not be punched out of sheet-steel without difiiculty and the material at the edges of the shearing points was torn, so that the hoe neck of the same got loose during use of the implement and the blade was lost. Finally, fastening contrivances have been proposed, in which 'the blade is secured by frictional contact with the hoe neck only.
The present invention relates to such a frictional fastening device, in which however the friction is increased by pressing the upper end of the blade into an inclined groove in the hoe neck and thus tensioning the blade.
Copies of this patent may be obtained for five cent The blade forms thus a wedge, whereby it is automatically held in place.
When using such hoes, the blade is always pressed firmer into the hoe neck and can thus not be lost.
The end of the socket 1 (Fig. 1), which serves for the reception of a handle, carries an outer tongue 2, which is passed through a square hole 3 in the blade 4 and adapted to bear against the outer side 6 of the latter. The butt-bearing 5 of the hoe neck bears then at the same time against the other side 7 of the blade. The projection. 8 forms a groove 9, which is inclined at a trifling angle toward the plane of the blade and into which the upper part of the blade is shifted until the rounded edge of the same strikes against the incline of the groove and presses the blade against the two adjacent surfaces of the projection 2 and butt-bearing 5, whereby the blade is completely clamped fast.
Another constructional form is shown in Figs. 3 and 4:, in which the tongue 2 is arranged on the inner side of the hoe neck and the blade 4 is inserted from this side, while the butt-bearing 5 is omitted. The inclined groove 9 has in this arrangement its incli- 4 nation angle oppositely directed to that shown in Fig. 1.
What I claim, is:-
The combination of a hoe neck having an inclined groove in its front end, butt-bearings on said neck, one to face said groove and the other below the latter, and a blade having a recess, through which the latter butt-bearing is passed, held by said buttbearings and firmly clamped into frictional contact with the incline of said groove, substantially as and for the purpose set forth.
ERICH ARNOLD.
Witnesses:
WOLDEMAR HAUPT, HENRY HASPER.
5 each, by addressing the Commissioner of Patents,
Washington, D. G.
US83094914A 1914-04-10 1914-04-10 Hoe. Expired - Lifetime US1139472A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US83094914A US1139472A (en) 1914-04-10 1914-04-10 Hoe.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US83094914A US1139472A (en) 1914-04-10 1914-04-10 Hoe.

Publications (1)

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US1139472A true US1139472A (en) 1915-05-18

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US83094914A Expired - Lifetime US1139472A (en) 1914-04-10 1914-04-10 Hoe.

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150373895A1 (en) * 2013-02-27 2015-12-31 Robert Bartnik Configurable Hand Tool System With Interchangeable Work Heads

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20150373895A1 (en) * 2013-02-27 2015-12-31 Robert Bartnik Configurable Hand Tool System With Interchangeable Work Heads
US9775271B2 (en) * 2013-02-27 2017-10-03 Robert Bartnik Configurable hand tool system with interchangeable work heads

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