US1085500A

US1085500A - Light-reflecting apparatus.

Info

Publication number: US1085500A
Application number: US75160013A
Authority: US
Inventors: David C Shoberg
Original assignee: Individual
Current assignee: Individual
Priority date: 1913-03-01
Filing date: 1913-03-01
Publication date: 1914-01-27
Anticipated expiration: 1931-01-27

Description

D. c. SHOBERG. LIGHT REPLBGTING APPARATUS.

APPLICATION FILED MAR. 1, 1913. 1,085,500. Patented Jan. 27, 1914.

2 SHEETSSHEET 1.

lllllllllllll COLUMBIA PLANOGRAPH CD-.WASHINGTON. D C.

D. O. SHOBBRG.

LIGHT REFLECTING APPARATUS.

APPLICATION FILED MAR.1. 1913 1,085,500. Patented Jan. 27, 1914.

2 SHEET$SHEET 2.

CULUMBXA ILANOGRAPH 110., WASHINGTON, u. c.

UNITED STATES PATENT OFFICE.

DAVID C. SI-IOBERG, OF SIOUX CITY, IOWA.

LIGHT-REFLECTING APPARATUS.

To all whom it may concern:

Be it known that I, DAVID C. SHoBERo, a citizen of the United States, residing at Sioux City, in the county of Woodbury and State of Iowa, have invented certain new and useful Improvements in Light-Reflecting Apparatus, of which the following is a specification.

This invention relates to improvements in photographers appliances, and more particularly to light reflecting apparatus adapted for reflecting light onto the shadow side of the subject.

The object in view is the effective distribution of light for obviating shadows, including the distribution of light rays on dark portions of the subject, as for instance for reflecting light on dark hair which would otherwise appear too dark in the finished photograph.

With these and further objects in view, a will in part hereinafter become apparent and in part be stated, the invention comprises supporting arms, means shiftably sustaining the same for enabling angular adjustment thereof with respect to each other and a movable support for said shiftable supporting means for enabling adjustment of the arms in angular relation to the horizon.

The invention comprises certain other novel constructions, combinations and arrangements of parts as will be hereinafter specified and claimed.

In the accompanying drawing:Figure 1 is a perspective view of an apparatus embodying the features of the present invention. Fig. 2 is an enlarged, detail view in side elevation of parts thereof, parts being seen in section. Fig. 3 is a top plan view of the parts seen in Fig. 2, the arms having been brought into vertical alinement and the upper arm being seen in horizontal section, other parts being also shown in section for illustrating interior structure. Fig. 4 is a view in rear elevation of the parts seen in Fig. 1. Fig. 5 is a horizontal sectional view taken on the planes indicated by line 55 of Fig. 2. Figs. 6, 7 and 8 are fragmentary, detail views of the curtain engaging apparatus.

Referring to the drawing by numerals, 1 indicates an ordinary tripod or other suitable, preferably telescopic, stand, the uppermost section of which terminates in a sleeve 2. The sleeve 2 is formed with a tapered bore through which extends a correspond- Specification of Letters Patent.

Application filed March 1, 1913.

Patented Jan. 27, 1914.

Serial No. 751,600.

ingly tapered rod 3, the latter extending through and beyond the sleeve and having the extension surrounded by a spring 4 which spring has one end resting against one end of the sleeve 2 and the other end resting against a washer or other stop 5 retained by a cotter pin or other securing means 6 passed through or otherwise engaging the extension of the bar 3, the spring 4 being tensioned to press the. bar 3 in a direction for maintaining a close fit between the bar and the bore of sleeve 2. The on posite end of the bar 3 terminates in and is preferably formed integral with or suitably secured to a ring 7 on each side of which is disposed a disk 8, each formed with an annular boss 9 extending into the ring and one formed with a preferably central aperture 10 through which a bolt 11 projects, the bolt 11 being formed integral with or otherwise fixed to the opposing disk 8. Each of the bosses 9 is of frusto-conical shape and the inner surface of the ring 7 is correspondingly shaped so that as the bosses 9 are forced into the ring their engagement with the surface of the ring will increase in intimacy until the friction is suflicient for retaining the disks 8 against rotary movement. A spool-like sleeve 12 surrounds the bolt 11 and a nut 13 engages the bolt outside of the spool 12, the nut 13 preferably being of the wing type for facilitating manual manipulation. The disk 8 which is formed with bolt 11 is provided with an outstanding boss 14 formed with a recess 15 in the line of the axis of the disk, and a bail-like rod or wire 16 is formed with an inturned end portion 17 extending into the recess 15, the bail 16 extending thence about the disks 8 and the ring 7 and being formed at its other end with an eye 18 surrounding the spool 12. The rod of which bail 16 is formed is also preferably bent or twisted into an intermediate eye 19 which is disposed substantially in alinement with the sleeve 7 for purposes hereinafter specified.

Each disk 8 is formed with a laterally disposed, preferably integral sleeve 21, and through each of said sleeves extends an arm 22, which for facility of construction may be tubular, the end portion of each arm 22 extending throughout the respective sleeve and being threaded beyond the sleeve and engaged by a nut 23 for retaining the arm in engagement with the respective sleeve. An annular shoulder 24 is formed on each arm 22 spaced from the respective sleeve 21 and a helical spring 25 surrounds each arm 22 between the shoulder 24: thereof and the adjacent end of the respective sleeve 21 so that the arms :22 are constantly pressed out-- wardly longitudinally for exerting constant tension on the reflecting curtain hereinafter described.

A reflecting curtain 2G is adapted to be sustained by the structure just described and may be of various sizes and shapes, being preferably provided at each end with a stiffening rod or bar 27 and at an intermediate portion with a similar rod 28. A looped wire or Other retaining device 29 is passed through the fabric of the curtain 26 substantially midway of the length of the bar 28 and about the bar and extends thence in the rear of the curtain to and detachably engages the eye 19. Somewhat similarly looped wire clips 80, 30 are arranged at the ends of the curtain 26 and passed through portions of the fabric thereof and about the respective rods 27, each of the clips 30 being formed with ahook adapted to be passed about and partway into the open free end of the respective tubular arm 22.

It is to be observed that each of the arms 22 is free to have that amount of longitudinal thrust permissible by the limit presented by the shoulder 24 with the interposed spring 2-3 and that such longitudinal move ment is attained always against the tension of the spring. Hence the curtain 26 may be of various lengths, always, of course, shorter than the possible limit of movement of the arms, and when applied the arms are thrust longitudinally against the pressure of the springs 25 until sufficiently retracted for engaging the clips 30, and thus the fabric of the curtain 26 is maintained taut. it is to be noted that the upper and lower portions of the curtain may be given various angular relations to each other for effecting and controlling the desired reflection of light, the variation in the angular relation being attained by movement of the arms through rotary movement of the disks 8, such movement being attainable by unscrewing the nut 13 sufficiently for leaving the disks free to rotate, and when the desired position has been attained the nut is again threaded home for effecting a clamping action and thus retaining the parts in a given adjusted position. Furthermore the arms are capable of being disposed at various an les to the horizon by virtue of the pivotal engagement of the shaft or bar 3 with the sleeve 2, the parts being susceptible of assuming the position indicated in dotted lines in Fig. a from the position indicated in full lines therein.

Having thus described the invention, what is claimed as new is 1 1. In a device of the class describeo, the

combination of curtain supporting arms, means shiftably supporting said arms for enabling angular adjustment thereof with respect to each other, and a movable sup port for said shiftable supporting mean for enabling adjustment of the arms in angular relation to the horizon.

2. In a device of the class described, the combination of curtain supporting arms, means shiftably supporting said arms for enabling angular adjustment thereof with respect to each other, a movable support for said shiftable supporting means for enabling adjustment of the arms in angular relation to the horizon, and means pressing the arms for subjecting a curtain engaged thereby to tension regardless of the angularity of the arms.

3. In a device of the class described, the combination of a pair of longitudinally shiftable arms, means movably sustaining the arms and adapted to enable angular adjustment thereof, and means subjecting the arms to a tension pressure adapted to maintain tensioned a curtain engaged by the arms regardless of the angularity of the arms.

4i. In apparatus of the class described, the combination, with a support, of a ring carried thereby, disks on the opposite sides of said ring, means for clamping the disks to the ring, and arms shiftably carried by the disks.

5. In apparatus of the class described, the combination, with a support, of a ring car ried thereby, disks on the opposite sides of said ring, means for clamping the disks to the ring, arms shiftably carried by the disks, and springs tensioned to thrust the arms longitudinally.

6. In apparatus of the class described, the combination, with a support, of a ring carried thereby, disks on the opposite sides of. said ring, means for clamping the disks to the ring, arms shiftably carried by the disks, the said arms being adapted to support. a curtain, and means engaging one of the disks for cooperating with the arms and supporting such curtain.

7. In a device of the class described, the combination, with a support, of a ring carried thereby having its inner periphery formed with inwardly tapering faces, a disk at each side of the ring having a laterally projecting frusto-conical boss adapted to snugly fit within the ring and to engage the tapering faces thereof, means for clamping the bosses against said faces, and curtain supporting arms sustained by said disks.

8. In a device of the class described, the combination, with a support, of a ring carried thereby having its inner periphery formed with inwardly tapering faces, a disk at each side of the ring having a laterally projected frusto-conical boss adapted to snugly fit within the ring and to engage the tapering faces thereof, means for clamping the bosses against said faces, a bolt extending from one disk to the other disk, a nut engaging the bolt and outer faces of the second mentioned disk for drawing the disks toward each other and clamping them to the ring, and curtain sustaining arms carried by the disks.

9. In a device of the class described, the combination of a revolubly mounted frame, disks disposed on opposite sides thereof, means for clamping the disks to the ring, and curtain sustaining arms carried by the ring.

10. In a device of the class described, the combination of a revolubly mounted frame, disks disposed on opposite sides thereof, means for clamping the disks to the ring, curtain sustaining arms carried by the ring, and supports on the ring for the arms adapted to sustain the arms by leaving the same free for longitudinal reciprocation.

11. In an apparatus of the class described, the combination, with a supporting sleeve, of a shaft journaled therein, a ring sustained by said shaft, rotatably mounted disks disposed on opposite sides of the ring, means for clamping the disks to the ring, a sleeve carried by each disk, and an arm shiftably carried by each sleeve.

12. In an apparatus of the class described, the combination, with a supporting sleeve, of a shaft journaled therein, a ring sus tained by said shaft, rotatably mounted disks disposed on opposite sides of the ring, means for clamping the disks to the ring, a sleeve carried by each disk, and a spring pressed arm slidingly carried by each sleeve.

13. In an apparatus of the class described, the combination, with a supporting sleeve, of a shaft journaled therein, a ring sustained by said shaft, rotatably mounted disks disposed on opposite sides of the ring, means for clamping the disks to the ring, a sleeve carried by each disk, an arm extending through and slidable longitudinally of each sleeve, each of the arms having a shoulder spaced from the sleeve, and a spring surrounding each arm and disposed between the sleeve and the shoulder.

14. In a device of the class described, the combination, with a support, of a sleeve having a tapering bore, a journal having a corresponding taper finding its bearing within the sleeve, a spring pressing the journal longitudinally in a direction for maintaining an intimate contact between the journal and the sleeve, and curtain sustaining arms carried by the journal.

15. In an apparatus of the class described, the combination with a support, of a pair of sleeves shiftably carried thereby, arms longitudinally reciprocally mounted in the sleeves, a reflecting curtain having stiffening cross pieces at its end portions, means connecting one of the cross pieces to one of the arms, and means connecting the other cross piece to the other arm, and means connecting an intermediate portion of the cur tain to the support for the arms.

16. In a device of the class described, the combination, with a support, of a ring sustained thereby, disks on opposite sides of said ring, means for clamping the disks to the ring, curtain sustaining means carried by the disks, a bail having its arms extending about the disks and having an engagement therewith, and curtain engaging means adapted to engage the bail.

In testimony whereof I afiix my signature in presence of two witnesses.

DAVID C. SHOBERG. Witnesses H. IV. PITKIN, D. G. MULLAN.

Copies of this patent may be obtained for five cents each, by addressing the 3ommiuioner of Patents, Washington, D. C.