US2477727A - Copper tube bending pliers - Google Patents

Copper tube bending pliers Download PDF

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Publication number
US2477727A
US2477727A US754214A US75421447A US2477727A US 2477727 A US2477727 A US 2477727A US 754214 A US754214 A US 754214A US 75421447 A US75421447 A US 75421447A US 2477727 A US2477727 A US 2477727A
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United States
Prior art keywords
jaws
tool
copper tube
handles
tube bending
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Expired - Lifetime
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US754214A
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Arthur W Engberg
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
    • B21D7/063—Pliers with forming dies

Definitions

  • This invention relates to a tool of the crosshandle type, the primary object of the invention being to provide a tool for bending copper tubing in restricted areas, the tool accomplishing its purpose without distorting or collapsing the tube.
  • An important object of the invention is to provide a tool of this character including pivoted jaws which may be adjusted to various angular positions with respect to the handles of the tool, so that the tool may be operated at corners, or at the rear of fixtures or pipes.
  • Still another object of the invention is to provide means for holding the jaws against movement under normal conditions, after the laws have been adjusted for use.
  • FIG. 1 is an elevational view of a tool constructed in accordance with the invention.
  • Figure 2 is a plan view thereof.
  • Figure 3 is a sectional view taken on line 33 of Figure 2.
  • Figure 4 is a perspective view of one of the jaws which may be substituted for one of the bending jaws as shown in Figures 1 and 2 of the drawing, when it is desired to use the tool as a stud puller.
  • the tool comprises a pair of cross-handles 5, the forward ends of the handles being formed into jaws 6 which are integral with the handles.
  • Each of these jaws 6 is provided with a slot 1 extending inwardly from the outer end thereof, the slot being designed to accommodate the arms 8 of the removable jaws 9 and Hi.
  • the jaws 6 are provided with aligning openings through which the bolts ll extend, the bolts also passing through openings in the arms 8 securing the removable jaws to the jaws 6.
  • a spring member is provided, the spring member having a detent [3 formed intermediate its ends, to fit into the notches i l formed in the arms 8, securing the removable jaws in various positions of angular adjustment with respect to the handles.
  • the spring members are formed with ends l that are adapted to fit over the edges of the jaws 6, as clearly shown by the drawing, thereby holding the springs in position.
  • the jaw I0 is formed with a curved recess of a width to accommodate the usual copper tubing, while the jaw 9 is curved to fit within the curved recess, and represents the male jaw of the bending tool.
  • This jaw 9 is transversely curved to fit over the curved surface of the copper tubing to be bent.
  • a removable jaw IB is provided, and this jaw is formed with teeth 11.
  • An opening 18 is formed in the jaw to accommodate the bolt II, when the jaws l6 are used to replace the jaws 9 and Ill.
  • the jaws l6 are designed primarily for extracting or pulling studs.
  • a tube bending tool comprising cross handles, integral jaws formed on the cross handles, said jaws having slots extending inwardly from the outer ends thereof, removable jaws curved to fit around a tube, arms formed on the removable jaws and disposed within the slots of the integral jaws, bolts extending through the jaws securing the removable jaws pivotally to the integral jaws said arms having notches formed in the edges thereof, a spring member fitted within each slot and having right angled ends engaging the sides of the integral jaws of the cross handles, said spring members having central offset portions engageable within the notches on the removable jaws holding the removable jaws in variable angular positions with respect to the stationary Jaws.

Description

mg, 2, W49. A. w. ENGBERG 2,477,727
COPPER UBE BENDING PLIERS Filed June 12, 1947 Patented Aug. 2, 1949 UNITED STATES ATENT OFFICE 1 Claim. 1
This invention relates to a tool of the crosshandle type, the primary object of the invention being to provide a tool for bending copper tubing in restricted areas, the tool accomplishing its purpose without distorting or collapsing the tube.
An important object of the invention is to provide a tool of this character including pivoted jaws which may be adjusted to various angular positions with respect to the handles of the tool, so that the tool may be operated at corners, or at the rear of fixtures or pipes.
Still another object of the invention is to provide means for holding the jaws against movement under normal conditions, after the laws have been adjusted for use.
With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts, hereinafter more full described and pointed out in the claim, it being understood that changes may be made in the construction and arrangement of parts without departing from the spirit of the invention as claimed.
Referring to the drawing Figure 1 is an elevational view of a tool constructed in accordance with the invention.
Figure 2 is a plan view thereof.
Figure 3 is a sectional view taken on line 33 of Figure 2.
Figure 4 is a perspective view of one of the jaws which may be substituted for one of the bending jaws as shown in Figures 1 and 2 of the drawing, when it is desired to use the tool as a stud puller.
Referring to the drawing in detail, the tool comprises a pair of cross-handles 5, the forward ends of the handles being formed into jaws 6 which are integral with the handles.
Each of these jaws 6 is provided with a slot 1 extending inwardly from the outer end thereof, the slot being designed to accommodate the arms 8 of the removable jaws 9 and Hi. The jaws 6 are provided with aligning openings through which the bolts ll extend, the bolts also passing through openings in the arms 8 securing the removable jaws to the jaws 6.
In addition to the bolts H, a spring member is provided, the spring member having a detent [3 formed intermediate its ends, to fit into the notches i l formed in the arms 8, securing the removable jaws in various positions of angular adjustment with respect to the handles.
The spring members are formed with ends l that are adapted to fit over the edges of the jaws 6, as clearly shown by the drawing, thereby holding the springs in position.
As clearly shown by the drawing, the jaw I0 is formed with a curved recess of a width to accommodate the usual copper tubing, while the jaw 9 is curved to fit within the curved recess, and represents the male jaw of the bending tool. This jaw 9 is transversely curved to fit over the curved surface of the copper tubing to be bent.
It is obvious that when the jaws are positioned against a copper tubing, and the handles are forced together, the jaws will curve or bend the copper tubing to the desired shape, without the danger of collapsing or distorting the cylindrical structure of the tubing.
As shown by Figure 4 of the drawing, a removable jaw IB is provided, and this jaw is formed with teeth 11. An opening 18 is formed in the jaw to accommodate the bolt II, when the jaws l6 are used to replace the jaws 9 and Ill. The jaws l6 are designed primarily for extracting or pulling studs.
From the foregoing, it will be seen that due to the construction shown and described, I have provided a tool which may be used in bending copper tubing, and one wherein the jaws may be adjusted to various angular positions with respect to the handles of the tool, so that the jaws may be positioned in restricted areas to grip and bend copper tubing.
What is claimed is:
A tube bending tool comprising cross handles, integral jaws formed on the cross handles, said jaws having slots extending inwardly from the outer ends thereof, removable jaws curved to fit around a tube, arms formed on the removable jaws and disposed within the slots of the integral jaws, bolts extending through the jaws securing the removable jaws pivotally to the integral jaws said arms having notches formed in the edges thereof, a spring member fitted within each slot and having right angled ends engaging the sides of the integral jaws of the cross handles, said spring members having central offset portions engageable within the notches on the removable jaws holding the removable jaws in variable angular positions with respect to the stationary Jaws.
ARTHUR W. ENGBERG.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES PATENTS Number Name Date 638,378 Casterlin Dec. 5, 1899 831,356 Kober Sept. 18, 1908 1,141,916 Aderer 1 June 8, 1915 1,445,908 Perkins Feb. 20, 1923 2,253,906 Lehman Aug. 26, 1941 FOREIGN PATENTS Number Country Date 44,706 Switzerland May 5, 1909
US754214A 1947-06-12 1947-06-12 Copper tube bending pliers Expired - Lifetime US2477727A (en)

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US754214A US2477727A (en) 1947-06-12 1947-06-12 Copper tube bending pliers

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US754214A US2477727A (en) 1947-06-12 1947-06-12 Copper tube bending pliers

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US2477727A true US2477727A (en) 1949-08-02

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2637231A (en) * 1949-02-14 1953-05-05 George L Sims Tube bending pliers
US2677177A (en) * 1948-02-18 1954-05-04 Herckelbout Raoul Cutting pliers
US3808870A (en) * 1972-06-01 1974-05-07 T Blancett Pipe crimping attachment
US4403497A (en) * 1981-05-11 1983-09-13 Matteucci Felix V Bead bending tool
US5228325A (en) * 1991-05-27 1993-07-20 C. A. Weidmuller Interface Gmbh & Co. Pliers with rotatable, pivotable die for multi-directional handling of workpiece
US20090217732A1 (en) * 2008-02-28 2009-09-03 Wen Lung Chang Tube-bending plier

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US638378A (en) * 1899-09-08 1899-12-05 Warren S Casterlin Tongs.
US831356A (en) * 1906-04-09 1906-09-18 Fritz Kober Pliers for bending metal pipe.
CH44706A (en) * 1909-05-05 1909-09-01 Widmer & Ruf E Pipe bending pliers
US1141916A (en) * 1913-08-28 1915-06-08 Julius Aderer Pliers.
US1445908A (en) * 1920-10-11 1923-02-20 Charles H Fuller Co Dish-holding tongs
US2253906A (en) * 1940-01-11 1941-08-26 Lehman Marshall Metal bead bender

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US638378A (en) * 1899-09-08 1899-12-05 Warren S Casterlin Tongs.
US831356A (en) * 1906-04-09 1906-09-18 Fritz Kober Pliers for bending metal pipe.
CH44706A (en) * 1909-05-05 1909-09-01 Widmer & Ruf E Pipe bending pliers
US1141916A (en) * 1913-08-28 1915-06-08 Julius Aderer Pliers.
US1445908A (en) * 1920-10-11 1923-02-20 Charles H Fuller Co Dish-holding tongs
US2253906A (en) * 1940-01-11 1941-08-26 Lehman Marshall Metal bead bender

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2677177A (en) * 1948-02-18 1954-05-04 Herckelbout Raoul Cutting pliers
US2637231A (en) * 1949-02-14 1953-05-05 George L Sims Tube bending pliers
US3808870A (en) * 1972-06-01 1974-05-07 T Blancett Pipe crimping attachment
US4403497A (en) * 1981-05-11 1983-09-13 Matteucci Felix V Bead bending tool
US5228325A (en) * 1991-05-27 1993-07-20 C. A. Weidmuller Interface Gmbh & Co. Pliers with rotatable, pivotable die for multi-directional handling of workpiece
US20090217732A1 (en) * 2008-02-28 2009-09-03 Wen Lung Chang Tube-bending plier

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