US 2449211 A
Description (OCR text may contain errors)
Sept, 14, 1948.
J. H. FORSYTH BOOKMARK Filed March 5, 1947 INVENTOR.
A T TOP? NE Y5.
Patented Sept. 14, 1948 tiNl l ED era-ra s e rs.
1 Claim. 1
This invention relates to book marks, and more particularly to that type of book mark which is permanently secured to the cover of the book with which it is used.
An important object of the invention is to provide a book mark of this character wherein a yieldable arm, forming a part thereof, and which is normally held between pages of the book, will automatically move to its proper marking position between leaves of the book, as the leaves are turned in reading.
Another important object of the invention is to provide a device of this character which when properly positioned on the cover of the book, will be maintained in its operative position at all times, and will not become displaced to defeat the operation of the device and purpose of theinvention.
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 fully 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 book mark, constructed in accordance with the invention.
Figure 2 is a sectional view taken on line 2-2 of Fig. 1.
Y Figure 3 is a sectional view taken on line 3- 3 of Fig. 1.
Figure 4 is a detail view illustrating the manner of securing the spring arm in position on the main portion of the book mark.
Figure 5 is a perspective view illustrating the application of the book mark.
Figure 6 is a sectional view taken on line 6-5 of Figure 4.
Figure 7 is a longitudinal sectional view through the end of the main section showing a modified form of wire structure at its point of connection with the main section.
Referring to the drawing in detail, the book mark comprises a main section 5 which includes a length of sheet metal material having a section 6 thereof bent inwardly along one longitudinal edge of the main portion, the inwardly bent portion 6 being disposed in spaced relation with the main portion as clearly shown by Fig. 3 of the drawing.
This section 6 is of a width so that its free longitudinal edge, will be spaced from the free 2 longitudinal edge of the main section 5, as shown by Fig. 1, to permit the device to be guided and readily positioned over one edgeof the cover of the book, which in the present showing is inthe main portion 5, which is gripped thereby to secure the, marker arm in position.
This inwardly extended end I 0 of the main portion, provides a shoulder and stop, adapted to engage one edge of the cover of the book, to prevent the main portion from being slid too far, towards the center of the book, to render the arm inoperative to accomplish its purpose.
The arm l is of a length to extend an appreciable distance beyond the inner end of the main portion 5, the free end of the arm I being extended downwardly at an oblique angle with respect to the main portion of the arm, where it will move between pages of the book, providing a marker.
It might be further stated that depressions are provided in the outer surface of the portion 6, defining enlargements ll, adapted to cause the section 6 to grip the book cover with which the book mark is used.
Due to the construction of this arm, and because of the material from which the arm is made, the arm will move upwardly and snap behind a leaf which has been turned. Further, the operation of the book mark is entirely automatic, and when one completes the reading of a page, and closes the book, the mark will automatically assume its position to mark a certain page of the book.
In the modified form of the invention as shown by Figure 7 of the drawing, the wire 9 is bent into substantially U-shaped formation. This form of wire may be used in lieu of the illustration shown by Figure 6.
From the foregoing, it is believed that the construction and operation of the book mark will be obvious, and that a further disclosure as to the operation and use of the marker is unnecessary.
What is claimed is:
A book marker including a clamp, substantially U-shaped in cross section, formed from a fiat piece of sheet material bent longitudinally upon itself to provide outer and inner clamp sections adapted to engage between them a book cover, the bend connecting said sections straddling the upper edge of the cover, a relatively elongated tubular shoulder, non-circular in cross section, on the clamp, an end edge of one of the clamp sections being rolled to provide said shoulder, said shoulder being disposed wholly beyond and adapted to fit against the side edge of the 4 extended from the shoulder at a right angle thereto vand outside of and in parallel relation to the bend of the clamp, and said medial portion terminating in a free end inwardly extended to lie against leaves of the book and to move therebetween when said leaves are turned.
JOSEPH H. FORSYTH.
REFERENCES CITED The following references are of record in the file of this patent:
FOREIGN PATENTS Country Date Australia May 20, 1930 Number