US657290A - Adjustable handle-bar. - Google Patents

Description

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' ICDNARD M. LANDIS, OF TOLEDO,

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ADJUSTABLE i-IANDLE-BR SFEGIFIGATION forming' part of Letters Fatent No. 657,290, dated. September 4c, 1900'.

Application filed March 18, 1899.

Be it known that l, EDWARD' M. LANDis, of Toledo, county oi' Lucas, and State of Ohio, have invented certain new and useful lmprovements in .fidliustable Handle-Bars; and I do hereby declare that the followingis a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appel-talus to make and use the same, reference being had to the accompanying drawings, and to the figures of reference marked thereon, which Yform part of this speciiieation.

YLily invention has reference to an adjustable handle-bar for bicycles or other vehicles,

and has for its object io provide an improved,0

and novel construction lfor locking the harsections against rotation.

My invention is designed to be employed l in that class of bars in which the ends of the bar-sections are formed' with intermeshing teeth where there is a simultaneous movement ot both bar-sections, the movement of one bar operating the other.

A further object of my invention is to so dispose the parts thereof that the symmetry of the bar will be maintained, permitting the use of the well-known form of the ordinary drop bar.

With vthese objects in parts ,and combination of parts hereinafter shown, described, and claimed.

In the drawings, Figure 1 is a perspectiveA view of my bar having therein the-iinproied locking device. Fig. 2' is an enlarged View, a portion oi the bar being cutaway to disclose the locking device, the ends of the barsections, the locking dogs, and the screwt'hrendod siem beingl shown in full lines.` Fig.

f3 is a' plan view to shoiv the relative position l of the intermeshing ends et' the bar-sections, also showing the bolts upon which the barse'ctions hinge and the grooves on the ends of the' sections for the reception of the screw- Fig. 4 is an elevation of the locking-stem, `showing theright and left hand threads thereon, also showing the knuri and square head en the end thereof. iiig. 5 is a pian View of one ofthe dogs, showing the parallel sections thereon. Fig. G is an elevation of one of the bolts upon which Vthe bar-sections hinge. i

view I employ theV 1 is a handle-bar postA adapted to beinser'ti ed in the bicycle-fori; stem 2 is a forked member on the end of the stem 1, having apertures 3 for the reception of bolts tand 5, respectively, upon which hinge handle-bar sections 6 and 7, the ends of the sections being formed 'with intermeshing-gear members 8 and 9.l

10 and 11, respectively, are dogs having on oneof their sides at 12 and 13 teeth or serrations correspondingto the teeth 14 of the gear members 8 and 9.. 1

15 is a screw-threaded locking-stem having thereon a right-hand thread 16 to engage the correspondingly-threaded dog 11 and 'a left-hand thread 17 to engage the interiorlythreaded dog 10.

18 is a knurl on mounted by a square head 19 for the reception of a wrench. The thread 16 is made of a diameter' to permit of its passage through the opening in dog 10. The handle-bar post is formed solid at 2O to serve as a rest for the lower dog 11 and is bored out at 21 to form a guide for the lower end of the screw-threaded locking-stem 15. The gearinembers S and 9 are grooved out at 22 and 23, respeetively,s`o that when assembled a passage-way and guide will be formed for the portion 24 of the screw stem 15.

l'n/"peration the parts are properly assembied, as shown in- Fig. 2. The Vlocking-stein 4is given a left-hand rotation, causing the dogs thereon to recede from the gear members'S and 9. The handle-bar sections are then adjusted to the desired position, ing given a dogs to engage the gear members and hold them rigidly in position. It will be seen by observing iig. 2 that the dogs practically couple the bars together. The Sections can even be removed from the forked mem by withdrawng'bolts 4 and 5 and stili be held rigidly together. It will be.seen from this the end of stem 15, sur-- and the loci;- right-hand rotation, causing the ber2y means for locking'the bars against rotation.

. The essential feature of invention is that there -be a positive movement of the dogs, the one toward the other, to engage the gear. mem

bers.

It is evident that I may dispense with the screw-threaded locking-stem 15-entirely and IOC employinstead alocking-stem screw-threaded bolts secured therein in parallel relation, the

on the lower end thereof to engage the lower handle-bar sections plvoted upon said bolts dog and having-a cam-lever on the upperend vand provided upon their adjacent ends With 25 thereof toengagethe uppersideofdogl0,said intermeshing teeth andahned grooves, an

5 dog being'formed wit an opening to permit upper and a lowerlocking-dog, provided with the free passage of the stem therethrough. serrations adapted to engage the teeth of the hat claim is* handle-bar seetions,alockingstem, provided In an adjustable handle-bar for bicycles with a left-hand thread of large diameter 3o or other vehicles, handle-bar sections having and a`righthand thread of smaller diameter zo intermeshing members on the adjacent ends adapted to en ter interorl -threaded perforathereof, bolts passing through said members tions 1nv the dogs, so as to bring them into 15 secured said bolts; dogs engaging said members, a right and left hand threaded screwstem to bring said dogs in engagement with said members, and grooves on said members, acting as a guide to said screx -thread'ed stem,

zo substantially as shown and described.

In an adjustable bicycle handle-bar, the stem bifureated at it's upper end, a pair of as shown and described.

In testimony that I claim the foregoing as my own I ax my signature in presence of two witnesses.

A EDWARD M. LANDIS. Witnesses:

`v BERTRAND G. JUDGE,

.TACQB B. LANDIS.

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