US3764064A

US3764064A - Graph implement

Info

Publication number: US3764064A
Application number: US00306518A
Authority: US
Inventors: A Gaidos
Original assignee: Individual
Current assignee: Individual
Priority date: 1972-11-15
Filing date: 1972-11-15
Publication date: 1973-10-09
Anticipated expiration: 1990-10-09

Abstract

In a graph implement, a multi-sided tubular body having an enlarged multi-sided tapered head terminating in a frustrum of a cone on the longitudinal centers thereof; a removable transparent casing or sleeve surrounding said body and spaced from the sides of the multi-sided tubular body to hold inserts bearing useful reference tables in the space between the tubular body and the transparent casing; a removable, multi-sided cap detachably held on the end of said tubular body to hold said transparent casing and said inserts in position; an aperture through the longitudinal center of the cap registering with the cavity of said tubular body for insertion and releasable retention of a ballpoint pen or pencil writing implement so that the writing end of said implement emerges through the tip of the enlarged tapered head; the multi-sided tapered head, the multi-sided transparent casing, and the multi-sided securing cap having the same sides in registry so that the corners thereof may be utilized as rulers for drawing when the graph implement is removed for that purpose.

Description

United States Patent [1'91 Gaidos et al.

[ Oct. 9,1;973

[ GRAPH IMPLEMENT [76] Inventors: Alonzo F. Gaidos; Angela G. Gaidos, both of 110 Oak Rim Ct., Apt. 11, Los Gatos, Calif. 95030 [22] Filed: Nov. 15, 1972 [21] Appl. No.: 306,518

Primary ExaminerRichard B. Wilkinson Assistant Examiner-Pat Salce Attorney-George B. White [57] ABSTRACT In a graph implement, a multi-sided tubular body having an enlarged multi-sided tapered head terminating in a frustrum of a cone on the longitudinal centers thereof; a removable transparent casing or sleeve surrounding said body and spaced from the sides of the multi-sided tubular body to hold inserts bearing useful reference tables in the space between the tubular body and the transparent casing; a removable, multi-sided cap detachably held on the end of said tubular body to hold said transparent casing and said inserts in position; an aperture through the longitudinal center of the cap registering with the cavity of said tubular body for insertion and releasable retention of a ballpoint pen or pencil writing implement so that the writing end of said implement emerges through the tip of the enlarged tapered head; the multi-sided tapered head, the multi-sided transparent casing, and the multi-sided securing cap having the same sides in registry so that the corners thereof may be utilized as rulers for drawing when the graph implement is removed for that purpose.

7 Claims, 22 Drawing Figures Patented Oct. 9, 1973 3,764,064

2 Sheets-Sheet 1 Patented ()cl. 9, 1973 3,764,064

2 Sheets-Sheet GRAPH IMPLEMENT BACKGROUND OF THE INVENTION A multi-sided implement which contained a withdrawable pencil so that the corners of the implement could be utilized for drawing or ruling lines, was shown in U.S. Pat. No. 1,677,387 granted to Alonzo F. Gaidos on July 17, I928.

The primary object of this invention is to provide an improved graph implement which has greater versatility and usefulness, and which is capable of supporting a calculating implement of the slide-rule type thereon, and which could be utilized for carrying useful information on flat strips held under a transparent casing.

Another object of the invention is to provide a tubular body in which a removable writing implement can be held and which body can be used as a writing implement, but which body includes separable parts, namely a head with a tapered writing end through which the writing implement extends, a transparent casing extended from said head, and a detachable head to hold the transparent casing in position, the three elements being multi-sided, the corners thereof being in registry to form contiguous straight edges for drawing or ruling lines, and wherein strips bearing useful information can be carried in the space within the transparent casing.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal exterior view showing two sides of the graph implement having a housing of triangular cross section having independent scales of differing types as viewed through the transparent sleeve-like casing.

FIG. 2 is a longitudinal view showing the flat side of the implement having an independent graduated scale viewed through the transparent sleeve-like casing.

FIG. 3 is a longitudnal exterior view of another side of the implement having a slide-rule type calculating device viewed through the transparent sleeve-like casing with a cursor element slideably mounted on the casmg.

FIG. 4 is an enlarged fragmental longitudinal sectional view, the section being taken on lines 44 of FIG. 3.

FIG. 5 is a cross-sectional view on lines 5-5 of FIG. 4.

FIG. 6 is a cross-sectional view on lines 6--6 of FIG. 2.

FIG. 7 is an end view in the direction of arrows 77 of FIG. 4.

FIG. 8 is a fragmental detail view of the multi-sided tubular body showing the spring-like latch formed integrally-with one side of the tubular body.

FIG. 9 is an enlarged end view in the direction of arrows 9-9 of FIG. 8. FIG. 10 is a side view of the transparent sleeve-like casing. FIG. 11 is an enlarged end view in the direction of arrows ll of FIG. 10.

FIG. 12 is a view showing one form of a strip insert with trigonometrical formulae thereon.

FIG. 13 is a cross-section through a simplified form taken through lines 13-13 of FIG. 14 excluding the removable writing implement.

FIG. 14 is a longitudinal partial cross-section of the simplified form taken through lines l4l4 of FIG. 13 excluding the removable writing implement.

FIG. 15 is a cross-sectional view on lines 15-15 of FIG. 14 showing a spring-like latch on the end of the multi-sided tubular body seated in latching aperture in the side of the cap. v

FIG. 16 is a cross-sectional view taken on lines I6-l6 of FIG. 14.

FIG. 17 is a fragmental detail view of a multi-sided tubular body of the simplified form showing the anchoring serrations at one end and the spring-like latch at the other end.

FIG. 18 is an end view of the simplified form of the multi-sided tubular body shown in FIG. 17.

FIG. 19 is a fragmental partly sectional detail view of the removable writing implement insertable for use in either the preferred or simplified forms.

FIG. 20 is a perspective view illustrating use of the graph implement for writing or free-hand lettering.

FIG. 21 is a perspective view illustrating use of the graph implement and the withdrawn writing implement for drawing.

FIG. 22 is a perspective view illustrating the graph implement utilized for determining dimensions ofa machine component.

DETAILED DESCRIPTION As shown particularly by FIGS. 4 and 5, a tubular body I has a frusto-conical head 2 at one end thereof and a detachable cap 3 at its other end. The sides 4 of the head 2 and also the cap 3 are of triangular crosssection of equal width and greater than the sides of the body 1, which latter is also of triangular cross-section. A transparent sleeve 6 is held between the head 2 and the cap 3. The sleeve 6 is also of triangular crosssection. The head 2 has an aligning shoulder 7 for receiving the flat sides of the triangular sleeve 6 and thereby registering the same with the sides of the head 2. The tubular body 1 has a spring finger 8 on its end insertable in a pocket 9 of the cap 3. On the end of the spring finger 8 is a catch 1 l as shown in FIGS. 6, 8 and 9, engageable with a latching aperture 12 on the middle of the side of the cap 3 so as to detachably hold the cap 3 with the three sides thereof in registry with the three sides of the sleeve 6.

The passage through the tubular body extends through the head 2 and terminates in a tapered and reduced portion to accommodate the tip of a writing in strument such as a ballpoint pen 13 in writing position with the tip 14 thereof projecting beyond the frustoconical tip of the head 2. The cap 3 has a threaded hole 16 therethrough and the writing implement 3 has a threaded neck 17 which can be screwed into the threaded hole 16 thereby to hold the writing implement in writing position. A knurled head 18 on the end of the writing implement is provided for facilitating the screwing and unscrewing of the writing implement into the cap 3.

The sides 4 of the head 2 and the cap 3 are substantially greater in width than the flat sides of the body 1, so as to provide spaces 19 between the respective sides of the body 1 and the triangular sleeve 6. In each space 19 are held suitable strip inserts 21. These strip inserts may be sheared from thin acrilac sheets or the like and are provided with suitable reference matters thereon, for instance, with graduated scales at their edges or useful reference tables such as matric conversion tables or with mathematical or trigonometrical formulae, according to the requirements of the user. The strips are inserted by removing the cap 3 which leaves the respective spaces or compartments 19 open at that end permitting the endwise insertion of the desired strip inserts. As illustrated in FIGS. 3 and 4, the strip insert 21 therein may be made in the form of a slide-rule with the middle insert portion 22 being slideable. For this purpose the head 2 and the cap 3 have grooves 23 aligned so as to permit the sliding of the middle strip 22. The overlying sides of the sleeve 6 have semi-circular cut away portions 24 at each end to permit access to the middle insert 22. On this side there is a suitable cursor 25 provided for the operation on this particular side as a slide-rule.

The interior corners of the sleeve 6 are formed angularly so as to provide parallel sides 26 as guides for the respective flat strip inserts 21 in the respective spaces or compartments 19. The strip insert shown in FIG. 12, for instance, is provided with trigonometrical formulae.

In the form shown in FIGS. 14 to 18, the head 27 has a central elongated pocket 28 and a separate tubular body 29 is anchored in the pocket 28 and held therein in position. The cap 3 of this form is substantially the same as in the previous form except that it fits the adjacent end of the tubular body 29. This tubular body 29 also has the spring finger 8 provided with a catch 11 to engage the latching aperture 12 in the cap 3 as heretofore described. The writing implement illustrated in FIG. 19 shows clearly the threaded neck 17 and the knurled head 18 which can be detachably secured into the implement as heretofore described.

As illustrated in FIG. 20 this implement can be conveniently utilized as a writing implement. As shown in FIG. 21 when the writing implement or ballpoint pen 13 is detached, then the edges of the multi-sided or triangular implement can be utilized for drawing or ruling lines. As illustrated in FIG. 22, the side of the implement with the insert bearing graduated scale, is utilized for measuring.

We claim:

l. A graph implement comprising,

a multi-sided tubular body,

a multi-sided head at one end of said body,

a tapered tip on said head,

a multi-sided transparent sleeve extended from said head,

a multi-sided cap at the other end of said body to hold said sleeve in position,

said head and said cap and said sleeve being of larger circumference than the circumference of said tubular body thereby to form compartments between said tubular body and said transparent sleeve,

insert strips fitting into the respective compartments exposed to view through the respective sides of said transparent sleeve,

means to detachably secure said cap to said body thereby to permit the insertion of said strip inserts endwise into the respective compartments,

a writing implement insertable through said cap and said tubular body and said head in such position that the writing point of said writing implement projects through and beyond said tip,

and means in the cap to secure the writing implement in the cap.

2. The graph implement specified in claim 1, and

said head, said sleeve and said cap being of substantially triangular cross-section, and means on said head and means on said cap to align the respective sides of said head, said sleeve and said cap to form contiguous sides and contiguous edges respectively for the display of said strip inserts through the respective sides of the sleeve and the use of said edges for ruling,

and said strip inserts bearing inscriptions thereon exposed to view through the respective sides of said transparent sleeve.

3. The graph implement specified in claim 2, and

the strip insert at least adjacent one side of said transparent sleeve having a relatively slideable portion and having indicia of the slide-rule type,

the opposite ends of said one side of said sleeve being cut away to permit access to said slideable portion for manipulation,

the sides of said head and said cap having slots therein adjacent said slideable portion to accommodate the said slideable portion,

and a cursor slideably held on the outside of said side of said sleeve superimposed on said slide-rule type inserts.

4. The graph implement specified in claim 1, and

said head having a base, and said base having a recessed shoulder on its outer periphery,

and one end of said sleeve fitting onto said recessed shoulder so as to register the respective sides of said sleeve with the adjacent sides of said head.

5. The graph implement specified in claim 1, and

said detachable securing means being a spring finger on the end of said multi-sided tubular body adjacent said cap,

and a lateral latch on the end of said spring finger,

said head having a pocket to receive the adjacent end of said tubular body and said cap having a latching aperture at least in one of its sides for interlocking with said resiliently held latch.

6. The graph implement specified in claim 1, and

said multi-sided tubular body being anchored into the said multi-sided head at one end and being inserted into said multi-sided cap at its other end,

and a spring latch element on the end of said multisided body insertable into said cap,

said detachable securing means comprising releasably and yieldably interlocking elements in said cap and on the adjacent end of said tubular body.

7. The graph implement specified in claim 1, and

said cap having a threaded hole therethrough in registry with said tubular body,

said head having an aperture therethrough fitting the writing end of said writing implement,

and said writing implement having a threaded neck engageable with said threaded hole in said cap, and spaced from the writing end of said writing implement substantially the same distance as the distance between the writing end of the passage of the tapered portion of said head and said threaded hole in said cap.

Claims

1. A graph implement comprising, a multi-sided tubular body, a multi-sided head at one end of said body, a tapered tip on said head, a multi-sided transparent sleeve extended from said head, a multi-sided cap at the other end of said body to hold said sleeve in position, said head and said cap and said sleeve being of larger circumference than the circumference of said tubular body thereby to form compartments between said tubular body and said transparent sleeve, insert strips fitting into the respective compartments exposed to view through the respective sides of said transparent sleeve, means to detachably secure said cap to said body thereby to permit the insertion of said strip inserts endwise into the respective compartments, a writing implement insertable through said cap and said tubular body and said head in such position that the writing point of said writing implement projects through and beyond said tip, and means in the cap to secure the writing implement in the cap.

2. The graph implement specified in claim 1, and said head, said sleeve and said cap being of substantially triangular cross-section, and means on said head and means on said cap to align the respective sides of said head, said sleeve and said cap to form contiguous sides and contiguous edges respectively for the display of said strip inserts through the respective sides of the sleeve and the use of said edges for ruling, and said strip inserts bearing inscriptions thereon exposed to view through the respective sides of said transparent sleeve.

3. The graph implement specified in claim 2, and the strip insert at least adjacent one side of said transparent sleeve having a relatively slideable portion and having indicia of the slide-rule type, the opposite ends of said one side of said sleeve being cut away to permit access to said slideable portion for manipulation, the sides of said head and said Cap having slots therein adjacent said slideable portion to accommodate the said slideable portion, and a cursor slideably held on the outside of said side of said sleeve superimposed on said slide-rule type inserts.

4. The graph implement specified in claim 1, and said head having a base, and said base having a recessed shoulder on its outer periphery, and one end of said sleeve fitting onto said recessed shoulder so as to register the respective sides of said sleeve with the adjacent sides of said head.

5. The graph implement specified in claim 1, and said detachable securing means being a spring finger on the end of said multi-sided tubular body adjacent said cap, and a lateral latch on the end of said spring finger, said head having a pocket to receive the adjacent end of said tubular body and said cap having a latching aperture at least in one of its sides for interlocking with said resiliently held latch.

6. The graph implement specified in claim 1, and said multi-sided tubular body being anchored into the said multi-sided head at one end and being inserted into said multi-sided cap at its other end, and a spring latch element on the end of said multi-sided body insertable into said cap, said detachable securing means comprising releasably and yieldably interlocking elements in said cap and on the adjacent end of said tubular body.

7. The graph implement specified in claim 1, and said cap having a threaded hole therethrough in registry with said tubular body, said head having an aperture therethrough fitting the writing end of said writing implement, and said writing implement having a threaded neck engageable with said threaded hole in said cap, and spaced from the writing end of said writing implement substantially the same distance as the distance between the writing end of the passage of the tapered portion of said head and said threaded hole in said cap.