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US 496851 A
Description (OCR text may contain errors)
(No Model.) 2 SheetsSheet 1.
W. BUNKER & L. W. BUTLER. TRIPOD.
No. 496,851. Patented May 9, 1893.
(No Model.) 7 2 Sheets-Sheet 2. W. BUNKER & L. W. BUTLER.
Patented May 9,,
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UNITED STATES PATENT OFFICE.
WILLIAM BUNKER, OF NEW YORK, AND LOUIS W. BUTLER, OF BROOKLYN, NEW YORK.
SPECIFICATION forming part of Letters Patent No. 496,851, dated May 9, 1893.
Application filed June 11,1892. Serial No. 436.397. (Nomodeh) To all whom it may concern: 3, suitably secured to the upper end of the Beit known that we, WILLIAM BUNKER, resection within which it slides. siding at New York, in the county of New Formed upon or secured to the upper ex- York, and Lows W. BUTLER, residing at tremity of the top section of the center post Brooklyn, in the county of Kings, State of 1,isabracket4,towhichissecuredthecamera- New York, citizens of the United States, have supporting arm or bar 5, by means of a thumbinvented new and useful Improvements in screw 6, engagingscrewthreadedholes formed Tripods, of which the following is a specificatherefor in the said bracket 4 and a similar ti bracket formed on the arm or bar 5, whereby [0 Our invention relates to tripods for supsaid arm may be adjusted to different angu- 6o porting photographic cameras and it has for lar positions with respect to the center post its object to provide anovel, simple and eco- 1. A screw hole is formed in the bracket 4, nomic tripod which shall afford a strong and to receive a set screw 7 which binds against steady support for the camera when in use, the bracket formed on the arm 5, to bind the 15 as well when it is used where there are inlatter in its adjusted position. The open equalities of ground as when the surface of bottom end of the lowerextremity of the centhe ground is level, and which may be packed ter post receives a covering cap 8, having Within a small area when not in use and for pins or projections extending therefrom to transportation. enter the ground to render the position of 20 To these ends our invention consists in the the said post steady. Fitted loosely upon one novel construction, combination, and arrangeof the telescopic sections, preferably the midment of parts hereinafter described and die one, and so that it may be free to slide claimed, reference being made to the accomthereupon, is a collar 9, having secured therepanying drawings, whereinto a plurality of small brackets 10.
25 Figure 1 is a perspective view of our im- The numerals 11, represent telescopic raproved tripod, partially extended. Fig.2 is dlatiug legs composed of a plurality of seea longitudinal sectional view of the same, tious one of which sections is preferably packed for transportation, or when out of use. made solid and fitted to slide within another Fig 3, is an enlarged, sectional detail showof the sections, and adjustable at the desired- 30 ing the means of attaching the radiating legs degree of extension by means of thumb So to the center post and Fig. 4 is an enlarged screws passing through a hole in the section detail of the split spring pin constituting a in which it slides and binding against the part of this means. solid sliding section. Secured to or formed In the drawings the reference numeral 1 With the upper extremity of each of these 3 5 designates the center post which is composed radiating legs is a bracket composed of two of a plurality of tubular sections capable of parts 12, 12, having a space between them sliding one within another. These sections into which fits the bracket 10 on the collar are adjustable to any desired degree of exten- 9. These brackets are formed with coincision, whereby the camera may be supported dent holes to receive a split, spring pin 13,
0 at any suitable height from the ground, by which is shown in enlarged detail in Fig. 4, means of set screws 2, passing through holes and, which, when inserted in the holes formed formed therefor in the different sections and in the brackets expands and is retained in binding against the sections which slide withposition by a slight head formed on the said in the sections to which the respective screws pin. By means of this connection the radiat- 45 are applied. The sections composing this ing legs are securely attached to the center 5 center post are prevented from being disenpost and their lower ends free to be moved to gaged from each other by slightly flaring that and from the said center post. extremity of each section which slides within By fitting the collar 9, loosely on one of the another, which flared extremity comes in contelescopic sections, should the operator acci- 5o tact with ashoulder formed byaring or band dentally come in contact with one of the ra- 10o diating legs 11, or should one of said legs be otherwise distributed the jar or vibration caused by such disturbance would be transmitted to and taken up by and lost in the loose collar 9, so that the center post 1 and the other radiating legs 11 would remain firm and undisturbed. Also, by reason of said collar being free to slide upon one of the telescopic sections, whenever it is necessary for the center post 1 to rest at a higher or lower elevation than the radiating legs 11, said radiating legs will automatically seek their proper position. have shown a thumb screw tapping the collar 9, but this is intended for use only, when circumstances require that said collar be fitted over the smaller or top section of the center post, in which case the said thumb screw will be adjusted to confine the collar so that it cannot slip over the top of the center post, but this thumb screw is not essential and may be dispensed with.
It will be seen that every partof the tripod is conveniently adjustable, and that the center post may be supported in a Vertical position notwithstanding irregularities in the ground, the radiating legs automatically ad- 3' usting themselves to meet the existing necessities.
It will be seen that we provide a tripod which will be firm and steady under all circumstances, the center post sustaining the weight of the camera, and the radiating legs bracing and steadying said center post, and any jar or vibration of which radiating legs is taken up by the loose collar 9. Finally by our invention we provide a tripod which, when out of use orin transportation, maybe packed into an extremely small space, and to accom plish this each of the sections composing the In the drawings We center post is provided with an open bottom and the inner or top section is tubular so that the sections may be telescoped and the radiating legs detached and inserted into the tubular inner or top section.
Having thus described our invention, what we claim is- 1. In a tripod the combination of a center sectional telescopic post, a camera-supporting arm carried thereby, and radiating telescopic legs secured to the center post, each section of said center post having an open bottom and the inner or top section being tubular to receive the radiating telescopic legs, substantially as described.
2. In a tripod, the combination of a center telescopic post, a camera-supporting arm carried thereby, a collar loosely fitted on said center post, and radiating telescopic legs secured to said sliding collar, substantially as described.
3. In a tripod, the combination of a tubular center post composed of tubular telescopic sections, a camera supporting arm, a sliding collar arranged on the center post and provided with brackets, and the radiating telescopic legs detachably connected with the brackets of the sliding collar so that said legs can be removed and inserted bodilyinto the innermost telescopic section, substantially as described.
In testimony whereof we have hereunto set our hands and affixed our seals in presence of two subscribing witnesses.
WILLIAM BUNKER. [L. 3.] LOUIS W. BUTLER. [L. s.
HENRY P. FRANSIOLI, AUGUSTUS J FRANSIOLI.