US415466A - Henry w - Google Patents

Description

H. W. OLIVER.

BEAM GOMPASSES.

Patented Nov. 19,1889.

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UNITED STATES PATENT OFFICE.

HENRY lV. OLIVER, OF NEV YORK, N. Y.

BEAM-COMPASSES.

SPECIFICATION forming part of Letters Patent No. 415,466, dated November 19, 1889.

Serial No. 294,789. (No model.)

To @ZZ wiz/m it may concern:

Be it known that I, HENRY IV. OLIVER, of the city, county, and State of New York, have invented a new and Improved Drawing Implement, of which the following is a full, clear, and exact description.

My invention relates to beam-Compasses;

Aand its object is to provide a new and improved drawing implement combining various instruments, and which is always ready for immediate use and is susceptible of the most accurate and perfect adjustment.

The invention consists in the construction and arrangement of certain parts and details and combinations of the same, as will be lfully described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side elevation of my improvement as applied for drawing circles with the hook-pen. Fig. 2 is an enlarged cross-section of my improvement on the line :c Qc of Fig. l. Fig. 3 is a similar view of the same on the line y y of Fig. l. Fig. 4 is an enlarged longitudinal mainly sectional elevation of one end of my improvement. Fig. is an enlarged sectional elevation of part of the eX- tension-beam. Fig. 6 is a plan View of my improvement applied as a T-square, and Fig. 7 isa longitudinal section of the leg partially broken away.

My improved drawing implement is provided with an extension-beam A, consisting of, the shell B, in which is fitted to slide the rod C, adapted to be secured to said shell B at any .desired point by a set-screw D, screwing into a projection on the inner end of the shell B, and screwing against one end E of the spring-plate E, fastened to the top of the shell B, and extending at its other end into a slot formed in the top of said shell B. r@he end E of the spring-plate E is pressed in con tact with the top of the rod C by adjusting said set-screw D, thus preventing the rod from sliding in the shell B. The other end E2 of the spring-plate E is bent downward and passes through the slot in the top of the shell B, and is adapted to engage a notch C', formed in the rod C nea-r its inner end, thus preventing the rod C from being pulled out of the shell B entirely, as the said bent end E2 engages said notch C', as illustrated in Fig. 5. The beam A, when in this position, is extended to its full length.

On the shell B is held ad j ustably a leg F, provided with the socket G, fitting on the shell B, with its sides and top, and carrying an adjustable foot or bottom piece H, secured on a U-shaped frame I, adapted to slide vertically in grooves G', formed on the insides of the sides of the socket G, as shown in Fig. 2.

From the top of the U-shaped frame I extends upward and through the top of t-he socket G a bolt J, on which screws a nut K against the top of said socket G, so that the frame I, with its foot II, is raised or lowered, and said foot II is brought into or out of contact with the bottom of the shell B, thus securing the leg F to the shell l5 or unfastening it from the same, in order to slide it to any desired point on the said shell. Theupper end J of the bolt J is reduced and not threaded, and on it is held to turn freely the knob or swivel L, which rests on top of the nut K, and is held in place by the head of a screw L, secured to the bolt J.

On the bottom ot' the socket G is formed a downwardly-extending lug G2, on which is pivoted the point N, held in a vertical position by the locking device O, consisting of the locking-bolt O', held to slide in the upper part of the point N, and being provided on its top with a lug O2, adapted to engage acorresponding notch G3, formed on the lower end of the lug G. A coiled spring O3 is held in the point N and presses the bolt O upward, so that the lng O2 engages the notch G3, and thus holds the point N in a locked vertical position. The bolt O projects at two opposite sides of the point N, so that the operator can conveniently take hold of the bolt and press it downward whenever he desires to swing the point N out of its Vertical position. This downward movement of the bolt O compresses the spring O3 and disengages the lug O2 from the notch G3, so that the point N can now be turned on its pivot on the lug G2 to a horizontal or inclined posit-ion or folded up against the beam A. IVhen the operator swings the point N into a vertical posit-ion ICQ Wis.

again, the compressed spring O3 forces the bolt O upward, so that the lug O2 snaps into the notch Gr3 again, thus locking t-hevpoint N in a vertical position.

On the outer end of the rod C is rigidly secured a holder P, in which is held to slide longitudinally acarriage P', on which `are pivoted the pencil Q, the pen R, and the point S. Each of these three pivoted parts is provided with a locking device O, as above described, and serving to hold either the pen, pencil, or point in an inclined or vertical positio'n,sothat either of the three can be used when the others are swung out of the perpendicular line, as shown in Figs. l and 4. The lugs O2 of each bolt O engage in this case the notches P2, formed on the carriage P. The longitudinal movement of thecarriage P is 'accomplished by a screw T, turning in suitable bearings in the holder P, provided with a screw-thread, on which screws the lug P3 of the carriage P. The lug P3 projects into a recess formed in the holder P, and when the screw T is turned the carriage P slides forward or backward on the holder P, whereby a very accurate adjustment of the pen, pencil, or point can be had.

On top of the holder P is held to turn freely the knob L2, of the same shape as the knob L and serving the same purpose-that is, to enable the operator to take hold of the knobs L and L2 with his fingers, and then swing the beam on the point S without twisting his iingers in doing so.

Near the inner end of the shell B and on one side of the same is arranged the head M, serving to adapt the shell B for use as a T- square'or bevel. The head M is provided with a plate M, pivoted at a2 to said shell B, and having the semicircular end n3, provided with the notches a4, adapted to be engaged by the free pointed end of the spring V, secured to said shell B. On the other end of the plate M are pivoted the arms NV and IV', each provided with a flanged edge IW, and having an edge W'S, standing at right angles to the flange W2, so that when the arms lV and IV are eX- tended, as shown in Fig. (l, the edges W3 meet, whereby one straight edge is formed by the two flanged edges 72. Each edge W3 is provided with a notch engaging the shank of a rivet a5, secured to the plate M. A similar rivet n is placed in a straight line with the pivot n2 of the plate M and the other rivet n, so that the movement of each arm lV is limited to one quarter-tu rn.

. When the arms IN and lV are extended, as shown in Fig. (S, so thatthe edges NVK rest l against the rivet n, the spring V engages the central notch in the. plate M whereby the shell B and the head M form a T-square, and can be used as such. 'lhe'arms WV and NV stand, in this case, at right angles to the shell The operator can turn the plate M so that tral notch, whereby the operator is enabled to, turn the plate lll until the flanged edges NVZ of the arms IV and lV stand at any desired angle to the shell B, so that the instrument can be used as a bevel for drawing inclined lines or for other purposes. The pointed end of the springV engages, in this case, a corresponding notch on the semicircular end of the plate h and thus holds the head M in an inclined position to the beam A.

It will be seen that the leg F can be adjusted on the shell B for any desired point, and the rod C can be drawn out of the shell B to any desired length, and then fastened by the set-screw D, so that the operator is enabled to draw circles of any desired diameter by using either the pencil Q or the pen R; or the operator can measure certain lengths by using the points N and S. It is understood that twoof the three (the pen, pencil, and point) are thrown out of a perpendicular position when the third one is in use. In order to throw either of the three out of a perpendicular line, it is necessary that the operator should press the bolt O downward and then swing the respective part to one side.

A very accurate adjustment can be made by turning the screw T so that the carriage P slides either inward or outward on the holder P.

When the operator desires to use part of my improvement as a T-square, he removes the leg F and the extension-rod C, after which he adjusts the head M, as above described, and shown in Fig. 6.

Having thus fully described Amy invention,

I claim as new and desire to secure by Letters Patent-` r l. In a drawing implement, the combinalion, with an extension-beam, of a leg carrying a pointer and held adjustably on said beam, a knob held to turn loosely on said leg, a holder carrying a pen, pencil, and other point and secured to said beam, and a second knob held to turn loosely on said holder, substantially as shown and described..

2'. In a drawing implement, the combination, with a shell and a leg held adjustably on said shell, of a rod telescoping in said shell, a holder secured to the outer end of said rod, a carriage carrying a pen, pencil,

and pointer and adapted to slide on said holder, and means for holding the said pen, pencil, and pointer up, so that. any of them will be out of the way while the third is in use, substantially as shown and described.

In a drawing implement, the combination, with a shell and a leg heldv adjustably on said shell, of a rod telescoping in said shell, a screw for fastening said rod to, said shell, a holder secured to the outer end of said rod, a carriage carrying the pen, pencil, and point and adapted to slide on said holder, and a screw for moving said carriage inward lor outward on said holder, substantially as shown and described. the point of the Vspring V disengages the ceni Il. In a drawing implement, the combination, with a shell, of a spring-plate held near one end of said shell, a screw screwing in said I O'O IOS shell and against one end of said spring-pla.te, and a rod telescopin g in said shell and adapted to be engaged by one end of said spring-plate, substantially as described, so that said rod can be held at any desired point by the setscrew, as set forth.

5. In a drawing implement, the combination, with a shell, of a spring-plate held near one end of said shell and extending to a slot in the said shell, and a rod telescoping in said shell and provided on its inner end with a notch adapted to be engaged by the inner end of said spring-plate, so as to prevent said rod from being drawn out of the shell, substan tially as shown and described.

6. In a drawing implement, the combination, with a shell, of a socket fitting over said shell and carrying a point, a foot-piece adapted to engage the bottom edge of said shell and secured to a frame adapted to slide vertically in said socket, a screwrod fastened to said frame and passing through the top plate of the socket, and a nut screwing on said screw-rod and against said socket, so as to press said foot-'piece against the bottom edge of said shell, whereby the socket isI fastened to the shell, substantially as shown and described.

7. In a drawing implement, the combination, with a shell, of a socket fitting over said shell and carrying a point, a foot-piece adapted to engage the bottom edge of said shell and secured to a frame adapted to slide vertically in said socket, a screw-rod fastened to said frame and passing through the top plate of the socket, a nut screwing on said screw-rod and against said socket, so as to press said foot-piece against the bottom edge of said shell, whereby the socket is fastened to the shell, and a knob turning loosely on the upper reduced end of said screw-rod, substantially as shown and described.

8. In a drawing implement, the combination, with a carrier adapt-ed to be secured to a beam and provided with a downwardly-projecting lug having a notched end, of a point pivoted to the said lug, and a bolt carried by the point and engaging the notch of the lug, substantially as described.

9. In a drawing implement, the combination, with a socket adapted to be secured to a beam and provided with alug projecting from its under side, said lug having a notch in its end, of a point pivoted to the lug and provided with a socket, a sliding bolt held in the socket, and a spring for pressing the bolt into d engagement with the notch of the lug, substantially as herein shown and described.

10. In a drawing implement, the combination, with a holdersecured to one end of the beam, of a carriage adapted to slide vertically on said holder, a pen, pencil, and point pivoted on said carriage, and a screw turning in said holder and engaging a threaded lug on the said carriage, substantially as shown and described.

Il. In a drawing implement, the combination, with a carriage adapted to slide longitudinally, of a pen, pencil, and point pivoted on said carriage, and a locking mechanism for locking the said pen, pencil, and point in a vertical or horizontal position, substantially as shown and described.

HENRY XV. OLIVER.

Witnesses:

EDGAR TAjrE, EDW. M. CLARK.

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