This print is a quality reproduction of the original filed patent artwork titled above. The displayed image above is a low-resolution graphic optimized for quick web display. The actual print you receive will be a detailed high-resolution print free of any defects or watermarks.
The artwork is printed in black on archival quality acid-free 8 1/2" x 11" simulated parchment stock replicating the authentic look and feel of the original patent. The actual artwork image size varies according to the original document but your print can be readily cropped to fit an 8" x 10" display frame.
This prestigious museum quality print is perfect for framing or mounting as you wish in any home or office as decorative wall art. Keep for yourself or great for gift giving to the avid collector. Great conversational piece!
Also included at no extra-charge are the remaining patent text and drawing pages (when applicable) describing this invention in detail. Most patents include a copy of the inventor's original signature (or signed by their patent attorney) on the artwork. Fascinating reading!
These are not construction plans or blueprints. This print is perfect for the collector who wants historical background on the above item. Some of the text may be hard to read but the illustrations are enhanced to meet or exceed the originally submitted patent artwork design and at the same time maintaining an authentic look from that era.
The following information was scanned and read with OCR directly from a copy of the original patent. We apologize for any difficulty in reading the OCR text; however it will give you a very good idea of the background of the patent print you will receive.
G. J. FORSMAN.
AXLE BEARING FOR VEHICLES.
Patented Jan. 9 1883..
N. PETERS. Ph&O.Lilh.g.ghan Washing.. D. C.
CALVIN J. FORSMAN OF COLUMBUS OHIO.
AXLE-BEARING FOR VEHICLES.
To all whom it may concern:
Be it _known that I CALVIN J. FORSMAN a
citizen of the United States residing at Columbus in the county of Franklin and State
5 of Ohio have invented certain new and useful Improvements in Axle-Bearings for Vehicle-Wheels of which the following is a specification.
My invention relates to improvements in
to anti-friction bearings for bicycles and other wheels; and the objects of my improvements are to provide bearings capable of adjustment to compensate for any wear of the bearing parts and to Inake these parts and their joints
15 as few as possible. I attain these objects by the construction illustrated in the accompanying drawings in which-
Figure 1 represents a front view of a bicycle having my improvements. Fig. 2 is a trans-
26 verse vertical section of one of the axle-bearings. Fig. 3 is a longitudinal vertical section of the same. Fig. 4 is a modification of the cane showing a screw-thread of a different form: Fig. 5 is a side view of the axle-bearings showing the right and left hand threads cut upon their peripheries. Fig. 6 is a front view of the wrench used to adjust said bearings:
Similar letters refer to similar parts through-out the several views.
3o In the drawings A represents the axle B the wheel-hub and C the cranks of a bic3 de. Each crank is secured to one end of the axle by a key c or other suitable means so that the two shall turn together. Within the pe
35 riphery of the axle and adjoining the ends thereof are cut V-shaped annular grooves A'
to receive a row of small hardened steel balls I adapted to approach each other and I do not
Do that are retained in position within said I claim broadly adjustable ball-bearings: What I claim as my invention is-
1. The combination of the axle provided with annular grooves A' with bearings E and E' provided with annular recesses and bolts g uniting said bearings with a series of balls adapted to rest within the annular groove of 95 the axle and between the annular recesses of said bearings substantially as and for the purpose described.
2. The combination of a bicycle-fork F Ii aving its end rings screw-threaded internally and roo the axle provided with annular grooves with the bearings E and E' provided with screw-
SPECIFICATION forming part of Letters Patent No. dated January 9 18E3.
Application filed November 14 18S2. (No model.)
I which they are united and can be turned together the holes in the box E being screw-threaded to engage with the thread upon said bolts while the holes in the box E' are left 55 smooth. The right and left baud threads cut upon the periphery of the boxes +' and E' may be ordinary thread as shown in Fig. 3 or a ratchet-thread as shown in Fig. 4. The bearing-ring F is provided with an oil-hole f2 6o opposite the row of balls and this hole is closed by a spring-cap f 3 secured to said ring.
To unite the wheel to its axle and bearings said wheel is laid flat upon its side and the fork F' with its inner bearings E secured to 65 the end thereof is made to straddle the wheel. The axle is then passed through said bearings and a series of hardened steel balls is introduced in the cavity of said bearing between
it and the groove in the axle. The bearing qo E' is then screwed until nearly brought to a bearing over said balls. The bolts g are then used to connect the bearings E and E' said bearings are rotated together and their right and left hand threads bring them to bear uni- 75 formly on both sides of the balls. Each bolt g is then given a portion of a turn to rigidly clamp the bearing-surfaces of the thread (upon the periphery of the bearings E E') against the internal thread of the ring F. The oiler- 86 ation is repeated for the opposite end of the axle and the cranks are then secured to the ends thereof.
I am aware that various forms of ball-bearings have been used and that they have been 85 constructed so as to be adjustable for wear by having the bearing-box made in two parts
grooves by the bearing-boxes E and E' ad-
40 justably secured within a ring F attached to
each branch of the front fork F' of a bicycle
the ring F having lugs f adapted to rest
against the sides of the perforated ends of
said fork and being also perforated to receive
45 the retaining-bolt f'. The interior of the ring
F is screw-threaded with different threads for
each half of its length one end having a right-
hand thread and the other end a left-hand
thread the bearing-boxes E and E' having
50 their surface threaded correspondingly. These
boxes have holes to receive small bolts g by
threads upon their peripheries and annular recesses and a series of balls adapted to enter the grooves upon the axle substantially as and for the purpose described.
5 3. The combination of a bicycle-fork having its cylindrical ends screw:threaded internally and the axle provided with annular grooves with a series of balls entering said grooves
bearings E and E' having their peripheries provided with a right and a left hand screw to and connecting-bolts g substantially as and for the purpose described.
CALVIN J. FORSMAN. Witnesses:
C. C. SHEPHERD
S. T. NEEDELS.