US879800A - Egg-tester. - Google Patents

Description

PATENTED FEB. 18, 1908.

C; F. SWANSON.

EGG TESTER.

APPLICATION FILED JULY 16, 1907.

INVENTOR L C diifl zuana'on ,4 TTOHNEYS Mizg THE "cams PETERS ca., WASHINGTON,'D. c,

UNITED STATES PATENT OFFICE.

CARL F. SWANSON, OF ST. PAUL, MTNNESOTA, ASSIGNOR TO X-RAY EGG TESTER 00., OF ST. PAUL, MINNESOTA.

E GGr-TE STER.

Specification of Letters Patent.

Patented Feb. 18, 1908.

T 0 all whom it may concern:

Be it known that I, CARL F. SWANSON, a citizen of the United States, and a resident of St. Paul, in the county of Ramsey and State of Minnesota, have invented a new and Improved Egg-Tester, of which the following is a full, clear, and exact description.

The purpose of this invention is to provide novel details of construction for an egg tester, which are simple and very effective in service, affording convenient means for giving mirrors employed any desired inclination from a vertical position, to reflect rays of light impinging thereon at a proper angle for illuminating eggs held in the tester for inspection.

The invention consists in the novel construction and combination of parts, as is hereinafter described and defined in the appended claims.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a partly'sectional side view of the improved egg tester showing different adjustments for the interior details by dotted lines Fig. 2 is a partly sectional side view, taken at a right angle to that shown in Fig. 1 and substantially on the line 2-2 in said fig ure; and Fig. 3 is an enlarged, partly sectional plan view of details, taken. substantially on the line 33 in Fig. 1.

The body portion 5 of the tester is in the form of a rectangular box having two opposite side walls 5 that are affixed upon the bottom Wall 5 as shown in Fig. 2. Ecotangular openings are formed in the remaining opposite sides of the body 5, which are marginally defined by transverse borderstrips (1, a, that form abutments against which the frames 1) of two similar mirrors 6, 6 may impinge, said frames having suitable back boards for the support of the mirrors. The frames of the mirrors 6 are rectangular, and at central points on the upright members I) of each frame, the perforated end portions of two similar link-bars c, c are pivoted by screw-studs d, as indicated in Fig. 1 and also for one link-bar, in Fig. 3.

Upon opposite ends of the link-bars c, c, the end portions of two similar link-bars e, e are lapped and pivoted, as shown at e in Fig. 1. The remaining ends of the link-bars e, e are perforated laterally andji lapped together, receiving journal studs 9 that are fixed in the permanent side walls 5 at their centers and therefore oppositely.

It is to be understood that as the connections 0, c and e, c are similar for each mirrorframe F), the latter will be supported on the links and their pivots, so as to be adapted for adjustment, either to close the openings in the sides of the body 5, or be inclined as indicated by dotted lines in Fig. 1, as will be further explained hereinafter.

Upon the level upper edge of the rectangular body 5 a cover or hood 7 is mounted, it comprising a four-walled structure having the lower end thereof equal in dimensions with those of the body 5, and from said lower end having its walls converged toward the upper end, thus giving said hood the form of a pyramid with the pinnacle thereof removed. The upper open end of the hood 7 has two opposite edges 7:. concaved and also scalloped, as shown at h, thus permitting a person to completely close the open end if the face of the person is imposed upon said edges, which is important, as it prevents the entrance ofv light at the top of the tester, which would detrimentally affect the testing operation.

The lower edge of the hood 7 is hinged at one side, as shown at i, and a hook and staple or equivalent securing means is provided at the opposite side, as shown at m, thus detachably holding the hood 7 on the body portion 5. For convenience in handling, a bail-handle 8 is mounted upon the hood 7 near its upper end.

The free top edge of the body section 5 is rabbeted, as at 7c, and forms a seat whereon a holder-plate A of an egg-lifter of any preferred construction is removably seated when the tester is in use, said plate supporting eggs that are to be inspected by one looking down upon the eggs, which are exposed to rays of light reflected upwardly from below the plate and eggs.

The improved egg tester affords means for utilizing natural light, such as the rays of the sun, or artificial light, if natural light is not available.

It will be seen that the mirrors 6, 6 may be given various inclinations, so as to receive light-rays and reflect such rays upwardly. For example, one or both mirrors may be inclined outwardly and downwardly, near the bottom wall 5", as shown broken and in dotted lines in Fig. 1, thereby adapting them for receiving light from outside of the boX body 5 and reflecting it upward through the eggs. Artificial light, such as a brilliant light from a lamp in a dark room, may also be employed and the rays therefrom that impinge upon the mirror or mirrors as the case may be, will be reflected upwardly.

The mirrors may be arranged to incline toward each other at their lower edges, and an electric lamp 9 be employed for illuminating the interior of the box body 5, said lamp being positioned between the inclined mirrors, as shown in Fig. 1. The mirrors 6, 6 are to be disposed vertically and against the border-strips a, a when the tester device is not in service, which may be effected by an adjustment of the mirrors and their controlling link-bars c, c and e, e, as shown by full lines in'Figs. 1 and 3.

In order to expedite the removal of a plate A that is part of an egg-lifter, after the eggs thereon have been tested, a short shaft n is journaled in one side 5 near its upper edge, an arm n being secured on the inner end of said shaft at right angles thereto, the arm having sufficientlength for its impingement on the lower side of the plate A, and efiect a sufiicient elevation of the latter to permit it to be manually grasped and raised from the body 5. On the outer end of the shaft n a thumb-piece or cross-arm a is formed, which enables a turning movement of the shaft n, and thus causes the arm to be elevated for the urpose described.

aving thus described my invention, I claim as new and desire to secure by Letters Patent:

1. An egg-testing device, embodying a hollow four-sided body having an opening ineach of two opposite sides, and mirrors adjustably supported in the body, adapted for closure of the openings or for receiving inclinations in the body.

2. An egg-testing device, embodying a hollow four-sided body having an opening in each of two 0 osite sides, two mirrors, and adjustable l1n bars pivoted upon the body and upon the mirrors, that by adjust inclination at the opening, a hood having,

upwardly converged walls and a sight-opening at the upper edge of said hood.

4. An e g-testing device, embodying a four-sided iOHOW body, two opposite sides thereof having an opening in each, two.

framed and backed mirrors that may close these openings, and two pairs of link-bars,

each pair pivoted together at their lapped ends and at theremaining ends respectively pivoted upon the side edges of the mirrorframes and upon the walls of the body at opposite points, whereby the mirrors'may be given different inclinations from a vertical lane, for the reflection of impinging rays of ight upwardly.

5. An egg-testing device embodying a rectangular hollow body having a rabbeted upper edge and having an apertured eggholder plate seated on said rabbeted edge, a rock-shaft journaled in a side wall of the body, near the holder-plate, an arm on an end of said shaft, and means for turning the shaft, for impinging an end of the arm on the holder-plate, thus raising said plate and permitting its manual removal.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CARL F. SWANSON.

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