US 634505 A
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Description (OCR text may contain errors)
Patmted Ont. l0, I899. U .1. P. SGHOWAL'TEB & s. A. a'osEuBAuEn.
(Applicstion m :m. 19'. 1899.)
IHIS PETERS on. PHOTO-LUNG wAsmnmum n. :4
P TENT "OFFICE.
JOSEPH P. SOl-IOWALTER AND GEORGE A. ROSENBAUER, OF MILl/VAUKEE, WISCONSIN, ASSIGNORS TO THE SANGER HANDLE BAR AND PLATING COMPANY, OF SAME PLACE.
SPEOIFICATIONforhuing part of Letters Patent No. 634,505, dated October 10, 1899.
i Application filed January 19, 1899. erial No702,6'77. (No model.)
T (056 whmn it may concern.-
Be it known that we, JosEPE P. ScHoWAL- TER and GEORGE A. ROSENBAUER, citizens of the United States, and residents of Milwau kee, in the county of Milwaukee and State of Wisconsin, have invented certain new and usefullmprovements in Bicycle Handle-Bars and we do hereby declare that the following is a full, clear, and exact description thereof. Our invention has for its object to simplify and cheapen the manufacture of bicycle handle-bars having grip members adjustable to various angles and also to utilize shank=expanders as parts of said handle-bars.
Afurther object of our invention is to overcome sticking of the shank-expa'nders.
With these objects in view our invention consists in certain peculiarities of construction and combination of parts hereinafter particularly set forthwith reference to the accompanying drawings and subsequently claimed.. t
Figure l of the drawings represents an elevation of a portion of our improved handlebar, partly broken and in section; Figs. 2 and 3, detail sectional views respectively indicated by lines 2 2 and 3 3 in the first figure; Fig. 4, a detail elevation of a portion of one of the adjustable grip members of the handlebar, and Fig. 5 a side elevation of the assembled parts of the device having a broken pivot-bolt.
' Referring by letter to the drawings, A indicates a metallic angular shell constituting ahollow head,having 9. depending stem b, to which is brazed a tube B, herein shown as having longitudinal kerfs c at intervals cir cumferentially of its lower end. The headstem and tube in rigid union therewith con- 40 stitute the shank of our improved handlebar, designed for vertically-adjustable connection with the steering-fork shank of a bicycle. Arranged to turn in the head A is a rod D, and the lower end of this rod has screw-thread connection with a conical block or shell E, engaging the kerfed end of said shank to constitute an expander for the same.
The upper end of the rod is squared to accommodate a wrench and provided with a stop-flange cl, that rests upon the head aforesaid. Rotatory movement of rod D operates to efiect vertical adjustment of the expander E, with which it has screw-thread connection.
Gear-toothed rounded inner ends g h of handle-bar grip members G H are arranged on pivot-bolts I J within head Ato mesh with each other, and the toothed faces of these grip-member extremities are peripherally grooved to aiiord clearance for the expan deradjusting rod above specified. The head of each pivot-bolt is made round to lit a corresponding aperture in the head A, and the fiat inner side of the bolt-head co mes snug against the rounded toothed end of the correspondmg grip memberof the handle-bar. As herein shown, each bolt-head may be provided with an inwardly-extending lug e, that engages a socket in the adjacent grip member, and thus the latter and its pi vot-bolt are in lock with each other to turn together. The toothed end of each grip member G H has that side thereof farthest from the head of its corresponding pivot-bolt provided with a circular series of radial wedge-ribs, and this ribbed surface meshes with a similar inner surface on a disk K, made fast in acorresponding side aperture of the handle-barhead, each disk being centrally apertured for the on gagementtherewith of a pivot-bolt. Washers p and clamp-nuts L engage .the aforesaid pivot-bolts outside the head of the handle bar, and by loosening the nuts slack is bad to permit disengagement of the opposing wedgerib surfaces, so that the grip members G H may be readily adj nsted to various angles, said grip members and pivot-bolts turning together in said head. The adjustment having been effected, tightening of the loosened nuts will cause lockin g together of opposing wedgerib surfaces above specified to maintain the grip members at the desired angle, the handle-bar being then rigid at all points.
Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-
A bicycle handlebar com prisin g a hollow head provided with a depending tubular shank longitudinally kerfed at intervals circumferentially of its lower end, an expander engaging the kerfed end of the shank, a rod that turns in the head and has screw-thread connectionwith the expander, grip members having rounded toothed ends in pivotallyadjustable connection with said head to mesh with each other therein, and means for maintaining pivotal adjustment of the grip members, the toothed faces of these grip members being grooved to afford clearance for the expander-adjusting rod.
In testimony that we claim the foregoing Io we have hereunto set our hands, at Milwaukee, in the county of Milwaukee and State of \Visconsin, in the presence of two witnesses.
JOS. P. SOHOWALTER. GEORGE A. ROSENBAUER. Witnesses:
N. E. OLIPHANT, B. (J. ROLOFF.