US1094672A

US1094672A - Photographic-dry-plate-inspection table.

Info

Publication number: US1094672A
Application number: US69693612A
Authority: US
Inventors: Arnold L Milentz
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-05-13
Filing date: 1912-05-13
Publication date: 1914-04-28
Anticipated expiration: 1931-04-28

Description

A. L. MILBNTZ.

PHOTOGRAPHIG DRY PLATE INSPECTION TABLE.

APPLICATION FILED MAY 13, 1912.

1,094,672. Patented Apr. 28,1914.

Fig.1. m 5

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' might have become scratched or finger ARNOLD L. MILENTZ, OF ST. LOUIS COUNTY, MISSOURI.

PHOTOGRAPHIC-DRY-PLATE INSPECTI ON TABLE.

Specification of Letters Patent. Patented Apr, 28, 1914,

Application filed May 13, 1912. Serial No. 696,936.

To all whom it may concern:

Be it known that I, ARNOLD L. Mnnn'rz, a citizen of the United "States of America, residing in the county of St. Louis and State of Missouri, have invented a certain new and useful PhotographicDry-PlateInspection Table, of which the following is a full,

clear, and exact description, reference being had to the accompanying drawings, forming a part of this specification.

My invention relates to a new and novel article of manufacture designed to facilitate the inspection of photographic dry plates while bein automatically conveyed from a cutting an breaking mechanism to a packing table, thus avoiding the necessity of handling the plates by an inspector, with the attendant danger of finger-marking the sensitized film of the plate. j

' Another important feature is that the distance of the plate from alight being always uniform, the plates may be inspected with great rapidity and. accuracy, thereby increasing the output and decreasing the liability of imperfect plates being delivered to the consumer.

Prior to my invention, it has been customary in photographic dry plate factories for an inspector to mani ulate the plate to be examined before a sultable light for inspec:

tion, after which it was cut, broken, and

packed. This manipulation was not only slow, but was also likely to allow defective plates to pass unnoticed through the inspectors hands, and especially ones which marked by the inspector during the act of inspecting.

Figure I is a lan view of my inspection table, one side of the box housing the lamps being partially broken away, and fragmentary views of the conveyer which delivers the plate to the conveyer traveling across theinspcction table, and the conveyer which receives the inspected plate for delivery to a packing table. Fig. 11 is a side elevation, partly in section and partly broken away to show the interior of the box housing the lamps. Fig. III is an enlarged transverse sectional'view taken through my inspection table.

In the drawings: 1 designates a rectanguthe belt 23, operates.

means may, however, be used instead of electric lamps.

4 designates a pair of standards secured to a supporting structure A, and provided with ledges 5, upon which the box 1 rests. Upon the upper end of these standards a sheet of glass 6 is supported and secured between the

lips

7 and 7 8 designates a sheet of glass of narrower width than the sheet 6, and upon which it rests 9 and 10 designate conveyer chains, the links of which mesh with the teeth of sprockets 11. The shaft 12 upon which two of the sprockets 11 are placed is driven by a belt 13 operable on the pulley 14 on one end of the shaft 12.- i

15 designates a series of pusher fingers secured to the

chains

9 and 10 and adapted to contact with one edge of a photographic dry plate 16, which is placed in the path of the moving pusher fingers by the conveyer 17 provided with dogs 18 for engaging one edge of the plate. The conveyer 17 is driven by sprockets 19 mounted on the shaft 12. v

The dry plate 16 is caused to travel along the sheet of glass 8 by the pusher fingers 15 and, as the glass 8 and theglass 6 are transparent, rays of ruby colored light are permitted to pass therethrough from the box 1, whereby an inspector may, by the aid of such rays of light, discover any defects in the illuminated sensitized film while in transit. It should be noted that the film side of the plate is uppermost, the uncoated surface of the glass plate being in contact with the glass 8.

After the dry plate 16 has been conveyed across the top of the inspection table, it is delivered to a conveyer belt 20, which in turn delivers it to a conveyer belt 21, which travels across a packing table 22. 23 is a link belt connecting the shaft 12 with a shaft 24 provided with a pulley 25 on which for conducting a photographic dry plate along the support.

2. An inspection table, comprising a pair of transparent top members located one above the other, the uppermost member be ing narrower than the lowermost member 1 plate being narrower than the first menand adapted to serve as a support for a l t-ioned plate adapted to serve as a runway photographic dry plate and means operable l for the photographic dry plate, and a COI1- above the lower top member and alongside veyer having fingers adapted to travel above It the upper top member for conducting a dry the first mentioned plate and alongside of plate along the upper top member. 1 the second mentioned plate to move a dry sin inspection table, comprising a lamp plate resting on said narrow plate.

housing; box, a lamp in said box, a transv ARNQLD L. BHLENTZ.

parent plate above said lamp housing boy lln the presence of a second transparent plate above said first A J. MCCAULEY,

mentioned plate, the second transparent E. B. LINN gar