US1387582A - Hammer - Google Patents

Hammer Download PDF

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Publication number
US1387582A
US1387582A US453993A US45399321A US1387582A US 1387582 A US1387582 A US 1387582A US 453993 A US453993 A US 453993A US 45399321 A US45399321 A US 45399321A US 1387582 A US1387582 A US 1387582A
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United States
Prior art keywords
hammer
cam
jaws
head
nail
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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
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US453993A
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Bergamini Antonio
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Individual
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Individual
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Priority to US453993A priority Critical patent/US1387582A/en
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Publication of US1387582A publication Critical patent/US1387582A/en
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D1/00—Hand hammers; Hammer heads of special shape or materials
    • B25D1/04—Hand hammers; Hammer heads of special shape or materials with provision for withdrawing or holding nails or spikes

Definitions

  • Fig. 2 a top or plan view.
  • Fig. 3 a plan view of one of the jaws detached.
  • Fig. 4 a side view of the same.
  • Fig. 5 a rear end view of the same.
  • This invention relates to an improvement in hammers and particularly to hammers having nail-extracting claws, and especially to claws which are adapted to be moved with relation to each other so as to grip a nail to be extracted.
  • the object of the invention is a simple arrangement of parts whereby a nail to be extracted may be readily gripped and firmly held, and the invention consists in the construction as hereinafter described and particularly recited in the claims.
  • I employ the usual hammer-head 6 of any approved form and applied to a handle 7 in the usual way.
  • the head is formed on one side, opposite the hammer-face S, with a transverse slot 9 and with a vertical passage 10, the upper portion of which is of larger diameter than the lower portion so as to form a shoulder 11 to provide a seat for a camhead 12 formed on the upper end of the pin .13, which projects beyond the hammer-head and has a cap 14.
  • Entering the slot 9 and mounted upon pins 15 and 16 are two jaws l7 and 18 provided respectively with gripping-edges 19 and 20 like the jaws of a usual claw-hammer.
  • the inner ends of the jaws are tapered and their adjacent faces formed with cam-surfaces 21 and 22 which bear upon the cam 12.
  • the jaws 17 and 18 are passed upon opposite sides of a nail to be extracted and the cap 14 ofthe pin 13 will then rest upon a surface, and a movement of the handle will force the pin upward between the inner ends of the aws and so as to crowd the outer ends of the jaws together to close engagement with a nail to be extracted, whereby that nail is firmly gripped so that it may be extracted.
  • This construction is simple, and in case either of the jaws becomes broken, it may be readily removed and replaced by another.
  • the jaws may be of hardened steel so as to provide for hard usage.
  • a hammer of the claw type having a head provided with a transverse slot and with a vertical opening, a cam located in said opening, a pair of jaws pivotally connected with the said head and extending into said slot and adapted by the inward movement of the cam to have their outer ends forced together.
  • a hammer of the claw type comprising a head formed with a transverse slot and with a vertical opening, a cam mounted in said opening, said cam formed with a pin projecting beyond the hammer-head, a pair of jaws pivotally mounted in said slot, the inner ends of the said jaws formed with cam-surfaces co-acting with the said cam.
  • a hammer of the claw type comprising a head formed with a transverse slot and with a vertical opening, a cam in said opening, said cam formed with an outwardly extending pm provided at its outer end with a cap, a pair of jaws pivotally mounted in said slot and provided at their inner ends with cam-surfaces co-acting with said cam, whereby when said cam is forced inward, thelouter ends of the jaws will be forced to get 161.

Description

A. BERGAMINI.
. HAMMER.
APPLICATION FILED MAR. 21. 1921.
1,387,582. 1 mm Aug. 16,1921.
UNITED STATES PATENT OFFICE.
HAMMER.
Specification of Letters Patent.
Application filed March 21, 1921. Serial No. 453,993.
To all whomit may concern:
Be it known that I, ANToXIo -BERGA 3.11m, a citizen of the United States, residing at North Haven, in the county of New Haven and State of Connecticut, have invented a ne and useful Improvement in Hammers; and I do hereby declare the following, when taken in connection with the accompanying drawings and the characters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this application, and represent, 111- Figure 1, a side view of a hammer constructed in accordance with my invention, with the handle broken away.
' Fig. 2, a top or plan view.
Fig. 3, a plan view of one of the jaws detached.
Fig. 4:, a side view of the same.
Fig. 5, a rear end view of the same.
This invention relates to an improvement in hammers and particularly to hammers having nail-extracting claws, and especially to claws which are adapted to be moved with relation to each other so as to grip a nail to be extracted. The object of the invention is a simple arrangement of parts whereby a nail to be extracted may be readily gripped and firmly held, and the invention consists in the construction as hereinafter described and particularly recited in the claims.
In carrying out myinvention, I employ the usual hammer-head 6 of any approved form and applied to a handle 7 in the usual way. The head is formed on one side, opposite the hammer-face S, with a transverse slot 9 and with a vertical passage 10, the upper portion of which is of larger diameter than the lower portion so as to form a shoulder 11 to provide a seat for a camhead 12 formed on the upper end of the pin .13, which projects beyond the hammer-head and has a cap 14. Entering the slot 9 and mounted upon pins 15 and 16, are two jaws l7 and 18 provided respectively with gripping- edges 19 and 20 like the jaws of a usual claw-hammer. The inner ends of the jaws are tapered and their adjacent faces formed with cam- surfaces 21 and 22 which bear upon the cam 12.
The jaws 17 and 18 are passed upon opposite sides of a nail to be extracted and the cap 14 ofthe pin 13 will then rest upon a surface, and a movement of the handle will force the pin upward between the inner ends of the aws and so as to crowd the outer ends of the jaws together to close engagement with a nail to be extracted, whereby that nail is firmly gripped so that it may be extracted. This construction is simple, and in case either of the jaws becomes broken, it may be readily removed and replaced by another. Furthermore, the jaws may be of hardened steel so as to provide for hard usage.
I claim:
1. A hammer of the claw type having a head provided with a transverse slot and with a vertical opening, a cam located in said opening, a pair of jaws pivotally connected with the said head and extending into said slot and adapted by the inward movement of the cam to have their outer ends forced together.
2. A hammer of the claw type comprising a head formed with a transverse slot and with a vertical opening, a cam mounted in said opening, said cam formed with a pin projecting beyond the hammer-head, a pair of jaws pivotally mounted in said slot, the inner ends of the said jaws formed with cam-surfaces co-acting with the said cam.
3. A hammer of the claw type, comprising a head formed with a transverse slot and with a vertical opening, a cam in said opening, said cam formed with an outwardly extending pm provided at its outer end with a cap, a pair of jaws pivotally mounted in said slot and provided at their inner ends with cam-surfaces co-acting with said cam, whereby when said cam is forced inward, thelouter ends of the jaws will be forced to get 161.
In testimony whereof, I have signed this specification in the presence of the subscribing witnesses.
ANTONIO BERGAMINI.
lVitnesses MARY'E. BERGAMINI, THOMAS A. Bozzr, J OHN MORICO.
Patented Aug. 16', 1921.
US453993A 1921-03-21 1921-03-21 Hammer Expired - Lifetime US1387582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US453993A US1387582A (en) 1921-03-21 1921-03-21 Hammer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US453993A US1387582A (en) 1921-03-21 1921-03-21 Hammer

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US1387582A true US1387582A (en) 1921-08-16

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US453993A Expired - Lifetime US1387582A (en) 1921-03-21 1921-03-21 Hammer

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5526719A (en) * 1995-09-14 1996-06-18 Chen; Tung-Yi Hammer
WO1998048978A1 (en) * 1997-04-29 1998-11-05 Burnett John A Impact tool
US7090196B1 (en) * 2004-08-02 2006-08-15 Linker Carson R Method of removing a stun gun dart

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5526719A (en) * 1995-09-14 1996-06-18 Chen; Tung-Yi Hammer
WO1998048978A1 (en) * 1997-04-29 1998-11-05 Burnett John A Impact tool
US7090196B1 (en) * 2004-08-02 2006-08-15 Linker Carson R Method of removing a stun gun dart

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