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Патент USA US3082815

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March 26, 1963
3,082,803
S. DICKSTEIN
ADJUSTABLE HACKSAW
Filed June 5, 1961
2 Sheets-Sheet 1
INVENTOR.
SAMUEL DICKSTEIN
BY
‘
%
Afro/Pm
March 26, 1963
s. DICKSTEIN
3,082,803
ADJUSTABLE HACKSAW
Filed June 5, 1961
I 2 Sheets-Sheet 2
INVENTOR.
SAMUEL
BY
,
DICKSTEIN
United States Patent ‘0
1
3,082,803
1
'
Patented Mar. 26, 1963
2
‘axially aligned. A thumb screw 29 is threaded in the un
3,082,803
derside of portion 26 ‘between legs 28, 30 and bears on
ADJUSTABLE HACKSAW
the underside of arm 16 for holding the member 25 in any
Samuel Dickstein, 75 Chadwick Road, Teaneck, NJ.
selected position along the arm as shown in FIGS. 1, 6.
Filed June 5, 1961, Ser. No. 114,706
The holder for blade 40 in the hacksaw consists of two
1 Claim. (Cl. 145-34)
holder members 42, 44. Holder member 42 as shown best
This invention concerns an improved hacksaw. Ac
in FIGS. 1, 2, 4 and 5 has a cylindrical body 45 with cen
tral slot 37 through which the ?at, elongated blade 40' may
cording to the invention there is provided a_ hacksaw
frame which is generally L-shaped in structure. Slidably
be inserted. A threaded hole 41 is formed in body 45. A
?tted on one arm of the frame is a slotted support for a 10 set screw 48 may be threaded in hole 41 for engaging the
blade. If desired holes '50 may be provided in the blade
hacksaw blade holder. On the other arm of the hacksaw
to be engaged by the set screw 48. Keys 52 are formed on
is a slotted ring adapted to engage a holder member for
the body 45 at one end at diametrally opposed positions to
the blade. The slotted support and slotted ring permit the
engage in slots 24 of ring 22.
blade to be mounted in various angular positions in the
Holder member 44 has a cylindrical body 51 with cen
frame. The blade holder is adapted to serve as handle 15
tral slot 53 to receive blade 40. Spaced threaded holes
so that the blade assembled therein can be used as an in
dependent cutting tool away from the hacksaw frame.
54 receive a set screw 55 which engages the blade 40.
At one end of the body 51 are diametrally opposed keys
56 which engage in slots 35 of ring 32. The other end
hacksaw frame with perpendicularly disposed arms, one
arm being provided with a slotted ring adapted to engage 20 of body ~51 is threaded externally at 58. A nut 60 is
a holder of a hacksaw.
threaded on the body 51 and bears against the outer side
of ring 36.
Another object is to provide a hacksaw having an L
shaped frame with perpendicularly disposed arms, one arm
FIGS. 1 and 6 show the assembly of frame, blade and
being provided with a slotted ring adjustably engaging a
and holder members. Screw 29 permits the member 25 to
holder member of a saw blade, a support for another blade 25 be adjustably positioned and set along arm 16. The
holder member slidably and adjustably mounted on the
holder members secure the blade 40 in the frame. The
engagement of the keys '52 and 56 in selected slots of
other arm of the frame, the support having another slotted
rings 22 and 32 determine the angular disposition of the
ring, and another holder member for the saw blade, ad
justably mounted in the other slotted ring.
plane of blade 40 with respect to the plane of the frame
Still another object is to provide a hacksaw including 30 12. The holder member 44 is axially disposed in rings
a holder for a hacksaw blade adapted to mount adjustably
32 and 36 and held there by nut 60. Tightening of nut
60 forces the keys 56 tighter into slots 35. Movement
in a support on a hacksaw frame, and further adapted to
It is therefore one object of the invention to provide a
serve as a handle for the blade used as cutting tool in- _
of member 25 on arm 16 toward the free end of the arm
dependent of the frame.
forces the keys 52 tighter in slots 24. Tightening of
For further comprehension of the invention, and of the 35 screw 29 sets the position of member 25 and secures the
holder member 42 in the ring 24.
objects and advantages thereof, reference will be had to the
following description and accompanying drawings, and to
FIG. 5 shows the saw blade 40 mounted in holder
the appended claim ‘in which the various novel features of
member 44 only. In this arrangement the assembly of
the invention are more particularly set forth.
.
blade and holder member may serve as a cutting saw in
In the accompanying drawings forming a material part 40 dependently of the hacksaw frame.
of this disclosure:
The entire assembly is characterized by simplicity of
FIG. 1 is a side elevational view of a hacksaw em
construction which enables fabrication at low cost by mass
bodying the invention, parts being broken away;
production and manufacturing methods. The structure is
rugged in structure, long lasting and is adaptable to a wide
FIG. 3 is an enlarged perspective view of the hacksaw 45 range of uses for cutting, measuring, etc.
frame and support for the blade holder, parts ‘being broken
While I have illustrated and described the preferred
away;
embodiment of my invention, it is to be understood that I
FIG. 4 is an enlarged perspective view of the hacksaw
do not limit myself to the precise contruction herein dis
blade and blade holder members, parts being broken away.
closed and that various changes and modi?cations may be
FIG. 2 is a front end elevational view of the hacksaw.
FIG. 5 is a side elevational view of the hacksaw blade 50 made within the scope of the invention as de?ned in the
and holder.
appended claim.
FIG. 6 is a sectional view taken on line 6—6 of FIG. 1.
Having thus described my invention, what I claim as
Referring to FIGS. 1-6, there is shown a hacksaw 10
new, and desire to secure by United States Letters Patent
including a frame 12 having mutually perpendicular short
1s:
arm 14 and long arm 16.
A hacksaw, comprising an L~shaped frame with two
mutually perpendicular arms, one of said arms having a
ring integrally formed at a free end thereof, said ring
The arms are ruled with 55
linear measuring scales 18, 20 to increase the utility of
the frame which can serve as an L-square independently
of the hacksaw. Arm 14 has a ring 22 formed integral
therewith at'its free end. This ring is formed with a
having radial slots circumferentially spaced in one face
responding slots 24 in ring 22. Another ring 36 is formed
at the free end of leg 28. Rings 22, 32 and 36 are all
aligned with the ?rst and second rings, a holder member
for a blade, said holder member having a cylindrical body
of the ring, a bifurcated member mounted on the frame,
plurality of angularly disposed radial slots 24.
60 said member having a tubular portion slidably received on
Slidably mounted on the longer arm 16 is a bifurcated
the other arm, screw means carried by said tubular por
member 25. This member has an upper tubular portion
tion for selectively ?xing the member along the other arm,
26 which ?ts slidably on the arm 16. The portion 26
said member having two angularly disposed legs, one of
and arm 25 may be rectangular in cross section to prevent
said legs serving as a handle for the hacksaw, the other
turning of the portion 26 on the arm. Outer leg 28 of 65 of said legs having another ring on a free end ‘thereof
member 25 extends angularly to the arm and axis of
‘axially aligned with the ?rst named ring, said other ring
portion 26 and serves as a handle for the hacksaw. Inner
having other radial slots circumferentially spaced in one
leg 30 of member 25 extends at an acute angle to leg 28
face of the other ring ‘and aligned with corresponding
and is formed with a ring 32 at its free end. This ring is
slots in the ?rst named ring, and a third ring integral
provided with angular radial slots 35 aligned with cor-' 70 with said one leg at the free end thereof and axially
3,082,803
3
4
axially disposed in the ?rst named ring, said holder mem
holder member, and a saw blade having opposite ends
ber having at least one radially extending key at one end
thereof engaged in a slot in the ?rst named ring, a second
holder ‘member for a blade, said second holder member
received in the slots of the holder members.
having another cylindrical body axially disposed in the
other ring, said second holder member having at least
one radially extending other key at one end thereof en
gaged in a ‘slot in the other ring, said other cylindrical
body having a threaded other end, and a nut threaded
on said threaded other end and bearing on the third ring, 10
each of the holder members being axially slotted from
end to end whereby a saw blade may extend through each
References Cited in the ?le of this patent
UNITED STATES PATENTS
138,362
Baggs ______________ __ Apr. 29, 1873
1,419,819
Chiddix ____________ __ June 13, 1922
58,957
490,126
Switzerland __________ __ Feb. 23, 1912
Italy ________________ __ Feb. 6, 1954
142,623
Great Britain ________ __ May 13, 1920
FOREIGN PATENTS
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