US1077464A

US1077464A - Machine for washing and drying photographic sheets.

Info

Publication number: US1077464A
Application number: US72505112A
Authority: US
Inventors: Charles J Everett; John V Mcadam
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-10-10
Filing date: 1912-10-10
Publication date: 1913-11-04
Anticipated expiration: 1930-11-04

Description

G. J. EVERETT & J. V. MGADAM. MACHINE FOR WASHING AND DRYING PHOTOGRAPHIG SHEETS.

APPLICATION FILED 0GT.10, 1912.

1,077,464, Patented Nov. 4, 1913.

2 SHEETSSHEET 1. W5.

Inventors yM UNITED STATES PATENT OFFICE,

I CHARLES J. EVERETT AND JOHN V. McADAM, OF NEW YORK, N. Y.

Specification of Letters Iatent.

. Patented Nov. 4, 1913.

Application flied October 10, 1912. Serial Io. 725,051.

To all whom it may concern:

Be it known that we, CHARLES J. Evnnn'rr and J OHN V. MGADAM, citizens of the United States, and residents of the borough of Manhattan, in the city and State of New York, have invented a new and useful Imrovement in Machines for Washing and r ing Photographic Sheets, of which the fol owing is a s ecification.

The object 0 this invention is to provide a machine in which photographic sheets may be thorou hly and rapidly washed and drled without anger of wrinkling, creasing or tearing the sheets and in which the manual handling of the sheets is reduced to a minimum.

A practical embodiment of our 1nvent1on is represented in the accompanying drawin s, in whichigure 1 represents the machine in slde elevation, Fig. 2 is a top plan view of the machine with its intermediate portions broken away, Fig. 3 is a vertical longitudinal section-through the machine, Fig. 4 is a detall transverse section showing more clearly the means for bringingFthe wringer into and out of operation, and ig. 5 is a detail view of one of the belt spreader bars, the intermediate portion of the same being broken away.

The side frames of the machine are denoted by 1 and 2, between which side frames a tank 3 for containing the liquid bath 4 for the sheets, is suitably supported. Atthe plied to the roll 5 front of the machine above and into close proximity to the liquid bath 4 a wringer is provided, which wringer is herein shown as comprisingl a pair of coacting

rolls

5 and 6,

aving an unyieldin non-absorbcut surface and the roll 6 a yie ding porous, preferably absorbent surface. Liquid is apthe surface of the roll 5 from a liquid bath 7 carried in a basin 8, into which bath the bottom of the roll 5 projects.

The particular form of wringer herein shown and described forms the subject matter of a copending application filed by us under even date herewith, its serial number being 725,050, filed October 10, 1912.

Between the liquid bath 4 and the wringer is preferably disposed a water pipe 9 arranged to direct jets of water against the face ofithe sheet after it leaves the liquid bath 4 and before it reaches the wringer, for the purpose of washing the face of the sheet. A cross bar 10 is also disposed between the wringer and the liquid bath in position for guidingthe sheet to the wringer.

Means 11 are provided for stripping the sheets from the roll 5 of the wringer after the sheets have passed between the

rolls

5 and 6. The guides 12 are proyided for guiding the sheet from the wringer onto an endless sheet carrier which is herein shown as a plurality of tapes 13 passing around

end rollers

14, 15, and an intermediate tightener roller 16.

17 designates a rotary drum which may be heated by any well known means such, for instance, as from a gas burner 18 extending into the interior of the drum. This drum is mounted between the side frames 1 and 2, near the top of the machine at the rear thereof. An endless sheet carrier which comprises a wide belt 19' serves to pass the sheet being treated around the periphery of the heated drum 17, which belt passes around

rollers

20, 21, 22, 23 and 24. The roller 21 may be adjusted angularly by suitable devices 25 for preventing the lateral creeping of the belt 19 alon the drum 17. Means are also provided for eeping the belt 19 spread to prevent any wrinkling thereof, which means are herein shown as a plurality of bowed

spreader bars

26, 27 and 28. Certain of these bars may be adjusted rotatively, as, for instance, the

bars

26 and 28, by

nuts

29, 30, while the other bar 27 may be free to adjust itself automatically on the belt 19.

Fixed guides 31 are arranged in position to guide the sheets from the tapes 13 onto the belt 19.

An endless sheet delivery carrier is arranged to receive the sheets after they leave the heated drum 17, which carrier is herein shown as a plurality of tapes 32 passing around

end rollers

33, 34. Means may be provided for heating this sheet delivery carrier, as, for instance, by providing a gas burner 35 arranged'across the machine beneath the said carrier.

Means 36 are provided for stripping the sheets from the heated drum 17 and guides 37 are provided for guiding the sheets onto the tapes 32 of the sheet delivery carrier.

, To keep the proper tension upon the sheet being treated, as it passes through the machine, it is desirable that the endless tapes 13 be driven at a slightly greater surface speedthan the

rolls

5 and 6 of the wringer, t e endless belt 19 be'driven at a slightly greater surface speed than the endless tapes 13 and that the delivery carrier tapes 32 be driven at a slightly greater surface speed than the endless belt 19.

The driving mechanism shown for the several parts, is as follows: A cross shaft 38 is driven from a suitable drive shaft 39 at variable speeds through a

friction drivlng connection

40, 41, the shaft 39 being driven from any suitable source of power, not shown herein. A sprocket chain 42 passes around a sprocket 43 on the shaft 44 and a sprocket 45 on the shaft 38. A sprocket chain 46 passes around a sprocket wheel 47 on the shaft 44, a sprocket wheel 48 loosely mounted on the shaft 49 of the roll 5, a sprocket 50 on the shaft 51 of the roller 14, a sprocket 52 on the shaft 53, and a sprocket 54 on the shaft 55 of the roller 24. A driving belt 56 passes around a pulley 57 on the shaft 55 and around a pulley 58 on the shaft 59 of the roller 33. The relative sizes of the various sprockets and pulleys are such as to secure the constantly increasing speed of the different sheet carriers as the sheet passes through the machine.

Manually controlled means are provided for bringing the wringer into and out of operation, which means are herein shown as comprising a clutch member 60 slidably keyed to the shaft 49 and arranged to be brought into and out of a clutch member 61 on the sprocket 48 by a rocking lever 62 connected to a foot treadle 63 by a flexible connection 64. A spring 65 tends to hold the clutch members in interlocking engagement.

In operation, the advance edge of the sheet being treated is manually lifted from its liquid bath 4 and its advance edge inserted between the

rolls

5 and 6 of the wringer. The wringer is then brought into operation and as the sheet is passed through the wringer its face will be washed by the jets of water or other liquid issuing from the pipe 9. The strippers 11 will strip the sheet from the roll 5 and the guides 12 will direct the sheet onto the tapes 13 of the sheet feeding carrier. As the sheet reaches the upper rear end of the carrier the guides 31 will direct the sheet onto the belt 19 and the sheet will be passed around the heated drum 17 between said belt and drum. The devices 36 will strip the sheet from the drum 17 and the guides 37 will direct the sheet onto the tapes 32 of the endless sheet delivery carrier. If found desirable, the sheet may be subjected to further heating while on the delivery carrier by using the burner 35. From the delivery carrier the sheet may be deposited into any suitable receptacle not shown herein.

Any tendency on the part of the belt 19 to become wrinkled is absolutely obviated by the use of the

bowed Spreaders

26, 27 and 28,

it being understood that one or more of these spreaders may be used as found desir able. Furthermore, the constantly increasing speed of the different sheet carriers serves, at the same time, to keep a strain upon the sheet being treated thus insuring the passage of the sheet through the machine without danger of becoming creased or wrinkled or torn.

What we claim is 1. In a machine for washing and dryin photographic sheets, a heated drum aroun which the sheet is passed, and an independent heated sheet delivery device arranged to receive the sheet from the drum.

2. In a machine for washing and drying photographic sheets, a liquid bath, a wringer for receiving the sheet therefrom, a heated drum and an independent means for passing the sheet from the wringer to the drum and means for passing the sheet around the drum.

3. In a machine for washing and dryin photographic sheets, a wringer, a heate drum, independent means for passing the sheet from the wringer to the drum and means for passing the sheet around the drum and an independent sheet delivery device arranged to receive the sheet from the drum.

4. In a machine for washing and drying photographic sheets, a wringer, a heated drum, independent means for passing the sheet fromthe wringer to the drum and means for passing the sheet around the drum and an independent heated sheet delivery device arranged to receive the sheet from the drum.

5. In a machine for washing and drying photographic sheets, a liquid bath, a wringer arranged to receive the sheet therefrom. an independent heated drum, independent means for passing the sheet from the wringer to and around the drum and a sheet delivery device arranged to receive the sheet from the drum.

6. In amachine for washing and drying photographic sheets, a liquid bath, a wringer arranged to receive the sheet therefrom, a heated drum, independent means for passing the sheet from the wringer to the drum, means for passing the sheet around the drum and an independent heated sheet delivery gevice arranged to receive the sheet from the rum.

7. In a machine for washing and drying photographic sheets, a wringer, a heated drum, an endless belt carrier arranged, to pass the sheet around the drum and an end less sheet carrier arran ed to pass the sheet from the wringer to t e endless belt carmen 8. In a machine for washing and drying photogra hic sheets, a wrin er, a heated drum, a elt carrier arrange to pass the sheet around the drum, an endless sheet carrier arranged to ass the sheet from the Wringer to the be t carrier and an endless deliver carrier arranged to receive the sheet from t e drum;

9. In a machine for washing and drying photographic sheets, a heated drum, a carrier arranged to pass the sheet around the drum, a delivery carrier arranged to receive the sheet from the drum and means for driving the delivery carrier at a greater surface speed than the first-named carrier.

10. In a machine for Washing and drying photographic sheets, a carrier arranged to pass the sheet around the drum, a wringer, a carrier for passing the sheet from the Wringer to the drum and means for driving the first-named carrier at a greater surface speed than the last-named carrier.

11. In a machine for washing and drying photographic sheets, aheated drum,a carrier arranged to pass the sheet around the drum, a wrin er, a carrier for passing the sheet from the Wringer to the drum and means for driving the last-named carrier at a greater sur ace speed than the wringer.

12. In a machine for Washin and drying photographic sheets, a heated rum, a carrier arranged to pass the sheet around the drum, a wringer, a carrier for passing the sheet from the Wringer to the drum, and means for driving the first-named carrier at a greater surface speed than the last-named carrier and the last-named carrier at a greater surface speed than the wringer.

13. In a machine for washing and drying photographic sheets, a heated drum, a carrier arranged to pass the sheet around the drum, a wringer, an independent carrier for passing the sheet from the wringer to the drum and an independent delivery carrier arran ed to receive the sheet. from the drum.

14:. n a machine for Washing and drying photographic sheets, a heated drum, a carrier arranged. to pass the sheet around the drum, a sheet delivery carrier arranged to receive the sheet from the drum and means for driving the delivery carrier at a greater surface speed than the first-named carrier.

15. In a machine for washing and drying photographic sheets, a heated drum, a carrier arranged to pass the sheet around the drum, a wringer, a carrier for passing the sheet from the wringer to the drum, a delivery carrier arranged to receive the sheet from the drum and means for driving the delivery carrier at a greater surface speed than the first-named carrier and the first-named carrier at a greater surface speed than the second-named carrier.

16. In a machine for washing and drying photographic sheets, a heated drum, a carrier arranged to pass the sheet around the drum, a Wringer, a carrier for passing the sheet from the Wringer to the drum, a delivery carrier arranged to receive the sheet from the drum and means for driving the delivery carrier at a greater surface speed than the first-named carrier, the first-named carrier at a greater surface speed than the second-named carrier, and the second-named carrier at a greater surface speed than the Wringer. c

17. In a machine for washing and drying photographic sheets, a drum, an endless belt for passing a sheet around the drum and means for s reading the belt to prevent itfrom wrinkling.

18. In a machine for washing and drying photographic sheets, a drum, an endless belt for passing the sheet around the drum and a spreader bar for spreading the belt laterally to prevent it from wrinkling.

19. In a machine for Washing and drying photographic sheets, a drum, an endless belt for passing the sheet around the drum and a bowed spreader bar for spreading the belt laterally to prevent it from wrinkling.

In testimony, that we claim the foregoing as our invention, We have signed our names in presence of two witnesses, this twentyseventh day of September 1912.

CHARLES J. EVERETT. J OI-lN V. MOADAM. \Vitnesses II Gnonen BARRY,

G. S. SUNDGTLEN.