US619322A - Thomas j - Google Patents

Description

No. 6|9,322. Patented Feb. l4`V 1899. T. J. LINDSAY. BICYCLE FRAME.

(Application med un. 15, 189s.)

(No Mude.)

g Thomas lLiufy,

UNITED STATES PATENT OFFICE.

THOMAS J. LINDSAY, OF LAFAYETTE, INDIANA, ASSIGNOR OF ONE-HALF TO DIETRICH H. LOHMAN, OF SAME PLACE.

BICYCLE-FRAM E.

SPECIFICATION forming part of Letters Patent No. 619,322, dated February 14, 1899.

Application filed January l5, 1898. Serial No. 666,754. (No model.)

To all wir/ont zit 11i/ty concern:

Be it known that l, THOMAS J. LINDSAY, a citizen of the United States, residing at Lafayette, in the county of Tippecanoe and State of Indiana, have invented certain new and useful Improvements in Bicycle-Frames, of which the following is a specification.

The principal object of my present invention is to provide in the construction of a bicycle-frame an inclosing casing for the chain, which shall be embodied in and form a part of said frame; and it consists in the construction and arrangement of parts whereby this object is accomplished, hereinafter` more particularly described and claimed.

Referring to the accompanying drawings, which are made a part hereof and on which similar letters and numerals of reference indicate similar parts, Figure 1 is a side elevation of a bicycle embodying my present invention; Fig. 2, a detail side elevation of that portion of the frame wherein my said invention principally resides,certain portions thereof being shown in section; Fig. 3, a view, partially in top plan and partially in horizontal section, of the hanger and immediately adjacent parts as seen from the dotted line 3 3 in Fig. 2; and Fig. 4, a transverse sectional view as seen from the dotted line 4. 4 in Fig. 2.

The bicycle illustrated in the drawings is that which embodies a certain driving-gear formerly invented by me 5 but, as will be readily understood, itis also applicable to the ordinary or any other desired gearing and only requires to adapt it thereto slight changes in form without material difference in construction.

As above indicated, the frame in its general construction and arrangement is or may be substantially of any form desired. The hanger A, however, which is carried by the ordinary frame members l and 2, has two tubular projections a, extending rearwardly to- Ward the hub of the rear wheel, and to these projections the forward ends of two tubes B B are connected. These tubes not only form a portion of the frame, but also the horizontal portions of an inclosing casing for the chain. The construction and arrangement of the gearing and its relation to the frame and casing parts are illustrated in Fig. 3. The ordinary frame member 3 has a structure C upon its `lower end, which is rigid therewith and forms a part of the frame, and has two tubular projections c c, to which the other ends of the tubes B B are connected, as best shown in Fig. 2. A part C2 is mounted in the structure C, (on the opposite side thereof to the projections c c, which receive the tubes B B,) and said part C2 is capable of adjustment telescopically relatively to said part C. Upon the outer end of the structure O2 is a cap C', which covers the otherwise open space and is held in place by screws c. The end of the shaft of the rear wheel passes through openings in the sides of the part C2, and when said shaft is adj usted by means ofthe set-screws sin adjusting the tension of the chain the part C2, because of its telescopic character, is also moved correspondingly. The hanger A has a plate A', which is provided with ears ct', and these extend over the edge of the hanger A and are secured to said hanger by screws 0,2.

As will be readily seen, in my construction the tubes B not only form a portion of the frame of the bicycle, but also constitute an inclosing casing for the chain. This arrangement produces a very strong, rigid, and durable structure and utilizes the chain-inclosing casing as a part of the frame itself and in a way which gives added strength and rigidity to the frame as a whole and particularly to that portion upon which the strain of the propelling power comes.

Having thus fully described my said invention, what I claim as new, and desire to secure by Letters Patent, is

The combination, in a bicycle-frame, of the members l, 2 and 3, the hanger and housing A having the projecting tubular portions a, a, the plate A' having the ears a2, by which it is connected to said hanger, the structure C also forming a housing secured to the member 3, and having the tubular projections c, c, on its front side, the caprC secured over the open rear side of the part C2, said part C2 telescopically mounted in the rear end of the part C, and the tubes B secured in and cen,- hand and sealwagtlndianapolis, 11111113442@- this necting the p1'0]`ecj;i 11g itubu'lgavrfpQ-rtiogns a, a, lQlhedty nf :Ian-nary, jl.

and c c' of Athe-llafnggers A afndC, -Whereby a rigid 7fratnne is secured and a chain-casing THOMAS J LINDSAY [L S'] 5 provided capable of ready adjustment, -sub- Witnesses:

stantially as set forth. CHESTER BRADFORD,

In .witness whereof kLhalve:hereuntossetmy lJ 4ALSH.

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