US2202518A - Loose-leaf binder - Google Patents
Loose-leaf binder Download PDFInfo
- Publication number
- US2202518A US2202518A US244951A US24495138A US2202518A US 2202518 A US2202518 A US 2202518A US 244951 A US244951 A US 244951A US 24495138 A US24495138 A US 24495138A US 2202518 A US2202518 A US 2202518A
- Authority
- US
- United States
- Prior art keywords
- teeth
- loose
- leaf binder
- projections
- comb
- 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
Links
- 239000011230 binding agent Substances 0.000 title description 10
- 239000000463 material Substances 0.000 description 6
- 102000011842 Serrate-Jagged Proteins Human genes 0.000 description 1
- 108010036039 Serrate-Jagged Proteins Proteins 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42B—PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES OR SIGNATURES OR PERMANENTLY ATTACHING OBJECTS THERETO
- B42B5/00—Permanently attaching together sheets, quires or signatures otherwise than by stitching
- B42B5/08—Permanently attaching together sheets, quires or signatures otherwise than by stitching by finger, claw or ring-like elements passing through the sheets, quires or signatures
- B42B5/10—Permanently attaching together sheets, quires or signatures otherwise than by stitching by finger, claw or ring-like elements passing through the sheets, quires or signatures the elements being of castellated or comb-like form
Definitions
- This invention relates to new and useful improvements in loose-leaf binders and particularly of plastic material or the like.
- Binders of plastic material are usually made in the form of a comb rolled up along tudinal axis-with the teeth overlapping the back of the comb.
- the material is suillciently re silient to permit the operator to pry open the teeth for insertion through the marginal perforations of the leaves. 'After'assembly the teeth are placed on the inside of the roll.
- FIG. 1 Three embodiments of the invention are illustrated in the perspective views (partly in section) of Figs. 1-3 of the drawing, Fig. lillustratinr; a serrated or roughened, and Figs. 2 and 3 two types of indented overlapping surfaces.
- the binder consists of a comb having a back I and teeth 2.
- the comb is rolled up along its longitudinal axis so that the teeth 2 overlap the back I.
- To guard the comb I roughen the inner surfaces of the teeth as indicated at 3, and those portions of the back I which contact with .the teeth, as indicated at 4. I have found that placing the teeth 2 on the better results than when they are on the inside of the roll.
- projections 22 are formed in the its longioutside of the roll produces shown in Fig. 2, each tooth In the arrangement shown in Fig. 3, the fingers 20 are indented as shown at 2
- the operator may 5 pry the cylinder open without the need of special tools and without mutilating the structure, and yet the teeth will be held from sliding open even when used on heavy books.
- the teeth and the back are thus held against relative longitudinal movements but are free to move transversely with respectv to one another.
- a comb of resilient molded composition having back and teeth rolled into a cylinder of predetermined diameter the longitudinal axis of which is parallel with the back, the, teeth being transverse thereto and overlapping the back, cooperating projections' and recesses formed in the back and teeth which interlock when the cylinder is of said predetermined diameter, the projections and recesses being shaped to lock the cylinder against enlargement of its diameter in response to forces normally applied thereto and unless the teeth are pried laterally away from the back, but when the cylinder is. radially compressed the projections will spring out of the recesses and permitthe rolling up of the cylinder into one of smaller diameter.
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Medicinal Preparation (AREA)
Description
May 28, 1940.- E. N. FARKAS LOOSE-LEAF BINDER Filed Dec. 10, 1938 FIG. 2
FIG. 1.
vAIIII I 3?.
VIII,
INVENTOR. a4 K M ATTORNEY.
- from easily Pulling apart.
Patented May 28, 1940 UNITED STATE LOOSE-LEAF BINDER Emil N. Farkas, Chicago,
11]., assignor of one-half to Frank F. Farkas, Chicago, Ill. I Application December 10. 1938. Serial No. 244,951
This invention relates to new and useful improvements in loose-leaf binders and particularly of plastic material or the like.
Binders of plastic material are usually made in the form of a comb rolled up along tudinal axis-with the teeth overlapping the back of the comb. The material is suillciently re silient to permit the operator to pry open the teeth for insertion through the marginal perforations of the leaves. 'After'assembly the teeth are placed on the inside of the roll.
I have found that when such binders are used to hold together a large number of heavy leaves, they have a tendency to open and catch on the leaves. This'is true particularly for plastic materials having slick surfaces.
To overcome this, in accordance with the present invention, I indent, serrate or roughen the overlapping surfaces of the roll of plastic binders whereby it will resist the strains to which it may be subjected during use.
Three embodiments of the invention are illustrated in the perspective views (partly in section) of Figs. 1-3 of the drawing, Fig. lillustratinr; a serrated or roughened, and Figs. 2 and 3 two types of indented overlapping surfaces.
As shown in Fig. 1,'the binder consists of a comb having a back I and teeth 2. The comb is rolled up along its longitudinal axis so that the teeth 2 overlap the back I. To guard the comb I roughen the inner surfaces of the teeth as indicated at 3, and those portions of the back I which contact with .the teeth, as indicated at 4. I have found that placing the teeth 2 on the better results than when they are on the inside of the roll.
nation at I3 is bent up into registry with The operator may pry the roll open, pass the teeth 2 through the marginal perforations of the leaves, and then snap 'them in place.
In the modification I is perforated at H and the material. cut out bent down as shown at l2. The projection 12 in each tooth l0 registers with a corresponding perforation "in the overlapping portion of the back Ii. The material struck up to form perfothe perforation II in the tooth ll.
In all the three embodiments the operator may 5 pry the cylinder open without the need of special tools and without mutilating the structure, and yet the teeth will be held from sliding open even when used on heavy books. The teeth and the back are thus held against relative longitudinal movements but are free to move transversely with respectv to one another.
What I claim is:
1. In a loose-leaf binding device, a comb of resilient molded composition having back and teeth rolled into a cylinder of predetermined diameter the longitudinal axis of which is parallel with the back, the, teeth being transverse thereto and overlapping the back, cooperating projections' and recesses formed in the back and teeth which interlock when the cylinder is of said predetermined diameter, the projections and recesses being shaped to lock the cylinder against enlargement of its diameter in response to forces normally applied thereto and unless the teeth are pried laterally away from the back, but when the cylinder is. radially compressed the projections will spring out of the recesses and permitthe rolling up of the cylinder into one of smaller diameter. y
2. The binding device defined in claim 1 and in which the projections are bent out portions and the cooperating recesses are openings.
3. The binding device defined in claim 1 and in which the projections are bent down portions of teeth and the cooperating recesses are openings in the back.
4. The binder defined in claim 1 and in which a bent down portion of each tooth engagesa wrresponding opening in the back, and a bent 40 up portion in the back formed adjacent each opening engages an opening formed in each tooth adjacent the bent down portion.
, 5. The binder defined in claiml and in which the projections and recesses are in the form of 4 interlocking corrugations formed in the back and teeth.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US244951A US2202518A (en) | 1938-12-10 | 1938-12-10 | Loose-leaf binder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US244951A US2202518A (en) | 1938-12-10 | 1938-12-10 | Loose-leaf binder |
Publications (1)
Publication Number | Publication Date |
---|---|
US2202518A true US2202518A (en) | 1940-05-28 |
Family
ID=22924747
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US244951A Expired - Lifetime US2202518A (en) | 1938-12-10 | 1938-12-10 | Loose-leaf binder |
Country Status (1)
Country | Link |
---|---|
US (1) | US2202518A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2290314A1 (en) * | 1974-11-08 | 1976-06-04 | Semon Guy | Ring-type bookbinder - has rings formed by blades with complementary protrusions and cavities at mating ends |
-
1938
- 1938-12-10 US US244951A patent/US2202518A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2290314A1 (en) * | 1974-11-08 | 1976-06-04 | Semon Guy | Ring-type bookbinder - has rings formed by blades with complementary protrusions and cavities at mating ends |
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