US2784470A

US2784470A - Page clip

Info

Publication number: US2784470A
Application number: US404694A
Authority: US
Inventors: Gordon T Watson
Original assignee: Individual
Current assignee: Individual
Priority date: 1954-01-18
Filing date: 1954-01-18
Publication date: 1957-03-12
Anticipated expiration: 1974-03-12

Description

March 12, 1957 G. T. WATSON PAGE CLIP Filed Jan. 18, 1954 INVHVTOR. Goeoou 7. IVATJON PAGE CLIP Gordon T. Watson, Los Angeles, Calif.

Application January 18, 1954, Serial No. 404,694

6 Claims. (Cl. 24--66) This invention relates to clips and more particularly to an improved clip for holding book pages in a relatively flat position.

Various types of paper clips, clip boards, page markers, and so forth are well known in the art. None of these clips however are adapted to accommodate anywhere from one to several hundred pages in a book and adequately secure these pages to one fly leaf of the book. Further, present day clips will not permit removal or insertion of one or more pages without having to expand and, in some instances, remove the clip each time. There is a strong need accordingly for a clip free from the above noted disadvantages, particularly in the case of field manuals or record books employed out of doors Where gusty winds tend to flap open pages in an annoying manner.

The present invention is primarily concerned with the provision of an improved clip for book pages which is economical to manufacture and assemble, easy to operate, and reliable.

More particularly, it is an object of the invention to provide a clip especially suited for use with field manuals or books to be used out of doors and which is capable of accommodating a large or small number of pages.

Still another object is to provide a clip which will not slip out inadvertently from the book and yet is easy to insert into position.

Another object is to provide a clip which will permit pages to be turned and slipped under the clip or removed from under the clip without having to expand the clip appreciably or remove the same.

Yet another object is to provide a clip of the above type which will not protrude to any appreciable extent from the edges of the book when placed in position, whereby the clip may simultaneously serve as a book marker.

These and further objects and advantages of the present invention are attained by providing a clip having as its primary component, an L-shaped member. The

horizontal leg of this member is adapted to slip under the fly leaf of the book or manual or under the bottom few pages thereof, and the vertical leg is adapted to serve as a rest or back surface seated against the edges of the pages to be clipped.

A clamping element is pivotally mounted intermediate its forward and rearward portions to the vertical leg of the L-shaped member. This pivotal mounting is disposed a suflicient distance above the angle in the L-shaped member so that a relatively large number of pages may be accommodated under the clamping element. A resilient means is disposed between the rearward portion of the clamping element and the vertical leg of the L-shaped member whereby the forward portion of the element is urged against the horizontal leg. Rocking motion of the clamping member takes place in the plane including the vertical and horizontal legs of the L-shaped member 2,784,470 Patented Mar. 12, 1957 andthe construction is such that a considerable separation or gap between the clip jaws may be effected.

The horizontal leg of the L-shaped member is provided along its longitudinal edges with barbs, these barbs being directed away from the free end of the horizontal leg. This arrangement permits the horizontal leg portion to be readily slipped under pages in a book but not easily removed unless the pressure of the clamping element is released.

Suitable finger grips for operating the clip are formed from integral portions of the vertical leg of the L-shaped member and the clamping element respectively whereby simplicity and economy are realized in the manufacture of the clip. Preferably the extreme tip end of the forward portion of the clamping element is turned upwardly in a smooth curve permitting pages to be readily inserted thereunder. In this action, the page edges themselves serve to expand the clamping element away from the horizontal leg to accommodate the inserted pages.

A better understanding of preferred embodiments of the present invention will be had by referring to the accompanying drawings, in which:

Fig. 1 is a general perspective view illustrating a preferred manner of using the present invention;

Fig. 2 is a perspective view of the clip shown in Fig. 1;

Fig. 3 is an elevational view partly in section of the clip of Fig. l in closed position;

Fig. 4 is a view similar to Fig. 3 showing the clip in open position;

Fig. 5 is a perspective view of a clip similar to that shown in Figs. 1-4 but embodying a modified type of pivotal mounting;

Fig. 6 is an elevational section of the clip shown in Fig. 5;

Fig. 7 is a cross-section taken in the direction of the arrows 77 of Fig. 6;

' Fig. 8 is a perspective view of another embodiment of the invention; and,

Fig. 9 is a section taken in the direction of the arrows 99 of Fig. 8.

Referring to Fig. 1, there is shown a book or manual 10. Books of this nature are oftentimes employed in the field for keeping records, making out receipts, entering orders, and so forth, and are often exposed to the elements rendering it difficult to adequately secure the pages in an open position.

In accordance with the invention, there is provided an improved type clip member, designated generally by the numeral 11, for holding down the book pages 12. As will become clearer as the description proceeds, the clip member 11 is so designed that it is a simple matter to manually insert further pages, such as the page 13, under the clip 11 without having to remove the same. Similarly, it is easy to slide pages out from under the clip. 1 Fig. 2 illustrates an enlarged perspective view of the clip 11 Essentially this clip comprises an elongated base member 14, which may be tapered in width towards its free end if desired. 7 The other end of the base member is bent upwardly to form a back member 15. Preferably the back member 15 extends upwardly at sub: stantially a right angle to the base member ld whereby a substantially L-shaped member having vertical and horizontal legs results. p

Cooperating with this L-shaped member is' a clamp ing element 16 having a rearward portion 17 of somewhat narrower dimensions to provide stop shoulders 18' and 19. This rearward narrowed'po'rtion 17'is adapted to fit loosely within a horizontal slot 20 in the back member 15, the slot being dimensioned to permit a rocking or a'pivotal motion of the clamping element 16 in the plane of the base and

back members

14 and 15. l A resilient means, preferably in the form of a compression rilosedslierein'but is tozbe accorded the full scope of the claims-,so as wto ,embrace any and all equivalent devices. fHaving described ourinvention, what we claim as new and desire to secure by LettersPatent is:

"1 A mechanical action for artificial limb joints comprising arelatively stationary member and a ratchet segment rotatably mounted on the member, alever rota- ,tabl-y mounted on the member with the rotational axis adjacent to'the circumference of the ratchet segment, a locking bar on said lever'having opposite curved faces positioned generally perpendicular 'to the radius from the rotational .axis of the lever, said segment having a :series of spaced generally radiallyextending bar receiving notches with faces complementary to the respective 'faces of the bar'when in bar receiving position, said rotational axis'of the lever being' at a point adjacent a line "tangent to'an arc'about the-axis of said segment struck through the centers of the faces'of said notch.

'2. "A mechanical action for artificial limb joints comprising a relatively stationary member and a ratchet segment-rotatably mounted on themember on the axis of rotation of the joint, a lever rotatably mounted on the member with the rotational axis adjacent to and exterior of the circumference of the ratchet segment, a locking baron said lever having opposite faces positioned generally perpendicular to the radius from the rotational axis of the lever and the faces, saidsegment being subject to :a rotative load and having a series of spaced generally -radially extending bar receiving notches with faces complementary to the respective faces of the bar when in bar receiving position, said-rotational axis ofthe lever being withinan angular distance of a line tangent to an are-about the axis of said segment struck through the centers of the faces of said notch such that the component rofthe force resulting from. application of a rotative load 'tendingto disengage the bar from the notch is less than vthe'frictional force on the respective contacting faces.

3. A mechanical action for artificial limb joints comprising a relatively stationary member and .a ratchet :segment-rotatably mounted on the member on the axis of rotation of the joint, -a lever rotatably mounted on the member with the rotational axis adjacent to and exterior of the circumference of the ratchet segment, a locking bar on said lever having opposite arcuatefaces positioned generallyperpendicular to the radius from the rotational axis of the lever and the faces, said segment having a ,series of spaced generally radially extending bar receiving notches with arcuate faces complementary to the respective faces of the bar when at bar receiving position, said rotational axis of the lever being within an angular distance of five degreesinside of a line tangent to an are about the axis of said segment struck through the centers of the faces of said notch.

4. A mechanical action for artificial limb joints comprising a relatively stationary member and a ratchet segment rotatably mounted on the member on the axis of rotation of the joint, a lever rotatably mounted on the member with the rotational axis adjacent to and exterior of the circumference of the ratchet segment, a locking bar on said lever having opposite arcuate faces of radius of curvature determined by the distance between the .rotational axis of the leverand the respective face, said segment having a series of spaced generally radially extending bar receiving notches with arcuate ffaces comple mentarytotherespective faces of'the bar, vsaid rotational axis ,of theflever being at a ;point 'within ;an angular distance of 15 degrees 'on either side "of 'a line tangent to an are centered atthe axis of said segment'and through thevcenters ,of'thefaces of a notch i n'bar engaging position, the faces 'of said notches having positions wherein said last; faces are in engagement substantially throughout their areas'with the re spective faces of thebar when in bar'engaging position. 1'

5. A mechanical action for; artificial limbjoints comprising apair of members wherein one member is adapted for attachment to a natural limb, parallel plates on one of the members, the other ofsaid members comprising a tubular sleeve rotatably mountedon-said plates providing thereby an articulating joint for said action, a'ratchet'segment fixed;on-said sleeve-having a series of'spacedgeneral ly radially extendingrnotches, alever pivotally mounted at acenter of rotation on'said one member, a locking bar fixed transversely on the lever, and an alternator connected between thevleverand ,one of said-members adapted to releasably hold said'bar 'out'of notch engagementposition, said bar having opposite notch contacting facescurved in the same general direction and saidrnotches having opposite curved bar engaging faces complementary to and adapted to engage'the respective faces of:the bar when in bar engaginggposition.

6. A mechanical action for artificial limb joints comprising a relativelystationary member adapted for attachment ,to a natural limb, parallel plates on said member and'a tubular 'sleeve 'rotatably mounted on said plates providing thereby an articulating joint for said action, a ratchet segment fixed on said sleeve having a series of spaced generally radially extending notches, a lever pivotally mounted'at a'center of rotationon said member, a locking bar-fixed transversely on the lever, a spring on said member normally urging said bar toward a notch engagement position, and an alternator connected between said member and the lever adapted to releasably hold said bar out of notch engagement position, said bar having opposite notch contacting faces of arcuate form and of radius determined by the-distance between the respective face and said center of rotation of the lever, said notches having opposite bar engaging faces of arcuate form complementary to and adapted to engage the respective faces of the bar when in bar engaging position.

7. A ratchet resistant mechanical action for artificial limb joints comprising a base, a ratchet segment rotatably mounted on the base and a locking bar having a pivotal mounting on said base, said locking bar having opposite segment-engaging faces curved in the same general direction about the axis of said pivotal mounting, said segment having a series of peripheral bar receiving notches with opposite faces respectively complementary to the faces on said bar.

References Cited in the file of this patent UNITED STATES PATENTS Germany Feb. 11, 1918 said shoulders bearing against said other member at opposite sides of said opening, one end of the clamping member being movable to a position of engagement with the other leg of said L-shaped member, and spring means bearing against said one leg and the other end of said clamping member for biasing said one end of the clamping member into said position of engagement.

3. A clip for pages comprising: an L-shaped member, one leg of said member having an opening extending therethrough in the direction of the plane of the legs of the member, a clamping element having a narrowed end portion extending loosely through said opening in the direction of said plane and shoulders abutting said one leg at opposite sides of said opening whereby to pivotally mount the clamping element on the L-shaped member for rocking motion in said plane, the other end of said clamping element overlying the other leg of the member, and spring means bearing against said one leg and said narrowed end portion of the clamping element for urging of each of said shoulders, a clamping element having openings iormed intermediate its ends for lossely receiving said narrowed terminal portion and projections Whereby to pivotally mount the clamping element on the member for rocking motion in the plane of the legs of the member, one end of said clamping element overlying the other leg of the member, and spring means bearing against the other end of the clamping element and said one leg for urging said one end of the clamping element into engagement with said other leg.

6. A clip according to claim 5 wherein said clamping element is formed with a projecting tab, said one leg and said tab being adapted to be urged together for separating said one end of the clamping element and said other leg.

References Cited in the file of this patent UNITED STATES PATENTS 109,563 Walton Nov. 22, 1870 327,440 Heysinger Sept. 29, 1885 469,237 Fontan Feb. 23, 1892 472,247 Baker Apr. 5, 1892 728,414 Rhoads May 19, 1903 942,641 Hesson Dec. 7, 1909 1,266,962 Lawlor May 21, 1918 1,653,465 Montan Dec. 20, 1927 FOREIGN PATENTS 1,052,881 France n Sept. 30, 1953 258 Sweden of 1886