US1478217A - Printing frame - Google Patents

Description

Dec. 18,1923. 1,478,217

D W. GRAY PRINTING FRAME Filed sent. 5. 1920 J 2 Sheets-Sheet 1 7/, fi 1 15952 Gfa%, Z5

A TTURNEYS WITNESSES Dec. 18 1923.

1,473,217 D w. GRAY PRINTING FRAME Filed Se 5 92 2 Sheets-Sheet 2 Z I WQ Z5 ATTORNEYS INVENTOR ray,

Patented Dec. 18, 1923.

UNITED STATES PATENT OFFICE.

D. WEBB GRAY, OF LOS ANGELES, CALIFORNIA, ASSIGNOR OF ONE-HALF T0 W. T. LOUDER, OF LOS ANGELESB, CALIFORNIA.

PRINTING FRAME.

Application filed September 3, 1920.

To all whom it may, concern:

Be it known that I, D. lVnnn GRAY, a citizen of the United States. and a resident of Los Angeles, in the county of Los Angeles and State of California, have invented certain new and useful Improvements in Print ing Frames, of which the following is a specification.

My invention is an improvement in printing frames, and has for its object to provide a frame of the character specified, adapted for use either with natural or artificial light, and for adjustment at different inclinations in order to facilitate admission of light from either source, and wherein there is provided a ruby glass holder so connected with the printing frame back that when the back is opened, the holder is closed to shut off the actinic rays.

In the drawings Figure l is a side view of the improved printing frame,

Figure 2 is a longitudinal section,

Figure 3 is a front view,

Figure 4 is a section on the line 4-4 of Figure 2.

In the present embodiment of the invention a channel shaped hood 1 is provided, having the top thereof closed by a plate 2 which is held in place by a. latch 3 at one end. The side walls of the hood as shown incline downwardly from one end to the other, and each of the said ends there is arranged a frame 4 and 5 respectively.

Within the frame 4 there may be arranged a light filter 6 as for instance, ground glass or the like. At the opposite end a similar filter 7 may be arranged, this filter being held by the inner end of the frame 5.

The printing frame 8 is hinged to the upper cross member of the frame 5, and this frame has connected therewith an extension or hood 9. This extension or hood is channel shaped, the bottom being of considerable width, and the side walls decreasing in width toward the top, so that the upper cross member of the printing frame forms the top of the extension.

The bottom or lower side of the extension has a rib 10 extending longitudinally thereof, which abuts the frame 5 when the rinting frame is in normal position, to iimit the movement of the parts and to hold Serial NO. 407,855.

the printing frame in. the inclined position shown in full lines in Figure 2.

A frame 11 is arranged at the rear of the frame 5, the frame 11 being hinged at its upper end to the upper cross member of the frame 5 as shown at 12, and this frame which is an open substantially rectangular frame carries a filling of ruby glass. This frame is mounted to swing upward into the full line position of Figure 2, or to swing downward to shut off the light from the printing frame.

A partition 12 is arranged in inclined po sition across the hood 1, the top of the partition being at the inner face of the top of the frame 5, while the bottom of the partition is at the inner face of the frame 4, and this partition has an opening through which the light rays may pass, the opening adapted. to be closed by the frame 11.

Referring to Figure 2, it will be seen that the partition is rabbeted at the opening as indicated at 13, to receive the frame 11. The back of the printing frame indicated at 14 is hinged to bar 15, as indicated at 16, and the bar is detachably connected to the upper cross member of the frame, by means of angle pins 17 which extend outwardly from the top of the printing frame. The bar seats down in the angle pins, and the bar is pressed away from the top of the printing frame by a plate spring 18 which is arranged between the bar and the top of the printing frame.

A set screw 19 is journaled in the bar, passes through the spring, and has threaded engagement with the printing frame, and by means of the set screw the position of the bar may be adjusted. The back of the frame is held closed by a latch lever 21 which is pivoted to the back as indicated at 22, and which engages a headed pin 23 on the printing frame.

A door 24 is provided in the back which is hinged to the back as indicated at 25, and the door extends the full width of the back. When the door is opened, access is permitted to a portion of the picture being printed. This door is normally held closed by a latch 26 pivoted at 27 to the door, and engaging beneath the headed pin 28 on the back. A plate 29 is; secured to the door longitudinally thereof and near its lower edge, and this plate extends beyond the door at its outer end as clearly shown in Figure 3. r

The extended end of the plate lies above a T-shaped extension on one of the arms 31 of an elbow lever whose other arm 32 is pivoted to the printing frame as indicated at 33. A link 34 connects the arm 32 with a lug 35 on the frame 11, the arrangement being such that when the printing frame is swung upward into the dotted line position of Figure 2, the frame 11 carrying the ruby glass will be swung down into the opening of the partition 12, cutting off the actinic rays. 7

it will be understood that the improved frame is adapted to be used in a dark room with the end adjacent to the frame 4: of the hood in position to receive the light from outside the dark room. New whenever the frame is in printing position, with the back and door closed, the ruby glass will be lifted. Whenever the door is opened, or the back is released, the frame 11 will swing downward and. will close into the partition 12, shutting off the actinic rays.

The printing frame has vertical guides 86 on its rear face into which a mask indicated. at 37 may be slipped for masking a portion of the picture. The arm 32 of the. elbow lever moves in a vertical slot 38 in the printing frame.

The extension frame 9 is normally prevented from swinging outward at its lower end by means of angle pins 39 which are pivoted to the frame 5, and which engage notched lugs 10 at the ends of the lower cross member of the frame. When these pins are swung outward, the lower end of the extension will be released, and the entire extension and printing frame may swing outward as indicated dotted lines in Figure 2. V

The plate 2 may be lifted as shown in dotted lines in Figure 2 to permit inspection of the interior of the hood. A leaf ll is provided at the lower end of the'extension, the said leaf being secured to a shaft 42 which is journaled in the extension, and the shaft has a knurled knob 43 atits outer end for convenience in manipulating the same. Theleaf ll is for the purpose of a reflector and also to shut off the lower portion of the frame when desired.

I claim 1. In a printing frame, a tubular hood open at its ends, an open end frame at each end of the hood, a printing frame hinged to the top of one of the said end frames at the outer face thereof, a ruby glass holder pivoted to the said end frameat the inner face thereof, a partition arranged in inclined position transversel of the hood between the top of the frame to which the ruby glass holder is hinged, and the bottom of the other end frame, and having an opening for receiving the ruby glass holder, said printing frame having a hinged back arranged to open, and a connection between the said back and the ruby glass holder for closing said holder when the back is opened, the hood having a removable top.

2. In a printing frame, a tubular hood open at its ends, an open end frame at each end of the hood, a printing frame hinged to the top of one ofthe said end frames at the outer face thereof, a ruby glass holder pivoted to the said end frame at the inner face thereof, a partition arranged in inclined position transversely of the hood between the top of the frame to which the ruby glass holder is hinged and the bottom of the other end frame, and having an opening for receiving the ruby glass holder, said printing frame having a hinged back arranged to open, and a connection between the said back and the ruby glass holder for closing said holder when the back is opened, a hood extension for the printing frame fitting into the end frame and ar 'anged to hold said printing f ame in inclined position.

In a printing frame, a tubular hood open at its ends, an open end frame at each end of the hood, a printing frame hinged to the top of one of the said end frames at the outer face thereof, a ruby glass holder pivoted to the said end frame at the inner face thereof, a partition arranged in inclined position transversely of the hood between the top of the frame to which the ruby glass holder is hinged and thebottom of the other end frame, and having an opening for receiving the ruby glass holder, saidprinting frame having a hinged back arranged to open, and a connection between the .said back and the ruby glassv holder for closing said holder when the back is opened, said connection comprising an elbow lever pivoted to the end frame and having onearm connected with the ruby glass holder, the other arm having means for engagement by the hinged back when it is opened to swing the elbow lever.

4. In a printinglframe, a tubular hood open at its ends, an open end frame at each end of the hood, a printingiframe hinged to the top of one of the said end frames at the outer face thereof, a ruby glass holder pivoted to the said end frame at the inner face thereof, a partition arranged in in clined position. transversely of. the hood between the top of the frame to whichthe ruby glass holder is hinged and the bottom of the other end frame, and having an opening for receiving the ruby glass holder, said printingframe having aihinged back arranged to open, and a connection between the said back and the ruby glass holder for closing said holder when the back is opened, said hinged back having ahinged door'com trolling the ruby glass holder to closed and open position when the hinged door is opened and closed.

5. In a printing frame, a tubular hood open at its ends, an open end frame ateach end of the hood, a printing frame hinged to the top of one of the said end frames at the outer face thereof, a ruby glass holder pivoted to the said end frame at the inner face thereof, a partition arranged in inclined position transversely of the hood between the top of the frame to which the ruby glass holder is hinged and the bottom of the other end frame, and having an opening for receiving the ruby glass holder, said printing frame having a hinged back arranged. to open, and a connection between the said back and the ruby glass holder for closing said holder when the back is opened, and a latch for holding the back closed.

6. In a printing frame, a tubular hood open at its end, an open frame at one end of the hood, a printing frame hinged to u the top of said frame at the outer face thereof, the lower end of the printing frame swinging inward and outward to vary the inclination thereof, and a hood extension connected with the printing frame for 010s ing the space between the hood frame and the printing frame when the printing frame is adjusted.

7. In a printing frame, a standing open frame, a printing frame hingedly attached to the upper part of said open frame at the outer face of the latter, and an inverted channel shaped extension carried by the printing frame and adapted to engage with the standing frame to hold the printing frame in outwardly swung inclined relation to the plane of the open frame and to close the space between the printing frame and the standing frame.

8. In a printing frame, a standing open frame, a printing frame hinged to the top of the open frame at the outer face of the latter, a back hingedly attached to the print-- ing frame, said back being arranged to open outwardly, a ruby glass holder pivoted to the standing frame at the inner face of the latter, a member connected at its upper end with the upper end of the standing frame and being inclined in respect thereto for limiting the swinging movement of the ruby glass holder toward the plane of the standing frame, a connection between the ruby glass holder and the printing frame back for moving the ruby glass holder against the inclined member when the printing frame back is open, and means associated with the standing frame and connected with the printing frame to hold the latter in clined when in closing relation to the standing frame.

9. In a printing frame, a standing open frame, a printing frame hingedly attached to the upper part of said open frame at the outer face of the latter, an inverted channel shaped extension carried by the printing frame and adapted to engage with the standing frame to hold the printing frame in outwardly swung inclined relation to the plane of the open frame and to close the space between the printing frame and the standing frame, and a reflector plate disposed transversely of said extension and being pivotally attached at its ends to the sides of the extension.

D. WEBB GRAY.

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