|Publication number||US306874 A|
|Publication date||Oct 21, 1884|
|Publication number||US 306874 A, US 306874A, US-A-306874, US306874 A, US306874A|
|Inventors||Chaelbs D. Thatcher|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (22), Classifications (1)|
|External Links: USPTO, USPTO Assignment, Espacenet|
0. D. THATGHER.
-GARRIAGE TOP PROP No. 306,874. Patented oat. 21, 1884.
WITNESSES: I INVENTOR /JL2! M/@ V BY ,M a
UNITED STATES ATENT FFICE.
CHARLES D. THATGHER, OF COLUMBUS, ASSIGNOR, BY MESNE ASSIGNMENTS, OF ONE-HALF TO FINLEY O. CUMMINGS AND JOHN (1- OHORPENNING,
BOTH .OF SPRINGFIELD, OHIO.
SPECIFICATION forming part of Letters Patent No, 306,874, dated October 21, 1884.
Application filed March 7, 1884. (Model.)
To aZZ whom, it may concern.-
Be it known that I, CHARLES D. THA'IOHER, of Columbus, in the county of Franklin and State of Ohio. have invented a new and Im proved Top-Prop for Carriages'of which the following is a full, clear, and exact. description.
Reference is to be had to the accompanying drawings. forming part of this specification. in
which similar letters of reference indicate cor- LO responding parts in all the tigu res.
Figure l is a perspective view. showing the bolt and bow-plate detached. Fig. 2is a perspective of the bolt placed in the socket of the bow-plate, with the covering washer or cap detached. Fig. 3 is a sectional elevation of the complete prop. Fig. 4 is a sectional plan View of the same. taken on the line wxof Fig. 3; and Fig. 5 is an inverted plan view of the top-prop.
The invention consists, principally, ofatopprop so constructed that the employment of screw-threads is dispensed with in connecting the bolt with the bow-plate.
The invention also consists of the construction. arrangement. and combination of parts,
all as hereinafter described and claimed.
Referring to the drawings, A represents the bolt. B the how-plate, and O the covering washer or cap. 0 at its outer end, as shown at a, to receive a nut, in the ordinary manner. At itsinnerend the said boltAisl'ormed with thelug a, which, together with the slot b andrecess I)", made in the bow plate B, and collar b thereof, forms a kind of bayonet-joint for looking the said bolt A and plate B together. Above the lug a a distance equal to the height of the collar 1) the bolt A is termed with the flange a", which is made square on opposite sides, as shown at 4c a for the application to the bolt ofa wrench for turning the bolt when necessary, and this collar is notched out ot'line with the lug a, as shown at a, to receive the locking-fin c'of the washeror cap 0, which fin, when the cap 0 is in place, enters also the slot 1) of the collar 1), which prevents the bolt A and washer or The bolt A is screw-threaded capC from turning, as will be understood from Fig. 3. The bow-plate B is adapted to be secured to the bow of the carriage top by screws passing through the screw-holes c and entering the bow in the ordinary manner, and the recess b" is extended to one side of the lower end of the slot 1), to form an offset, b at the lower edge of the collar 1), under which offset the stud a fits, to form the lockwhen thebolt is put in place in the bow-plate B and turned to bring the notch ain flange a to coincide with the slot b made in the collar b. The bolt A having been put in the bow-plate B and turned to the position shown in Fig. 2 with the notch a standing in line with slot b, the washer or cap 0 is to be put in place over the flange and collar of the bolt and bow-plate, as shown in Fig. 3, with theinternal fin, a, thereof entering the notch a and slot 1), which locks the bolt A from turning in the plate B, and thus causes the stud a, acting in connection with offset b, to securely lock the boltand bowplate together. In this manner it will be seen that all tapping of the bow plate B and forming of screw-threads upon thelower end of the bolt A are avoided, and that the connection of the bolt with the plate is perfectly secure and reliable, and that the prop is thus made cheaper and better than the common form of v prop.
Having th us described my invention, I claim as new and desire to secure by Letters Patent 1. The bow-plate B and bolt A, locked together by means of an offset and lug, substantially as and for the purposes set forth.
2. The bolt A, formed with lug a and flange a notched at a, .and bow-plate B, formed with collar b, slotted at b, and recessed toform offset 1), in combination with the washer or cap 0, formed with the locking-fin c, substantially as and for the purposes set forth.
CHARLES D. THATOHER.
M. R. SHANK, JNo. F. OHORPENING.
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