US784587A - Photographic-printing apparatus. - Google Patents

Description

No. 784,587". PATENTED MAR. 14, 1905. H. H. MGINTIRE.

PHTGRAPHIG PRNTING APPARATUS.

APPLICATION FILED MAR. 29, 1904.

4SHHBTS-SHBBT 1 PATENIED MAR. I4, 1905.

II. H. MGINTIRB.

PHOTOGRAPIIIG PRINTING APPARAFIUSE APPLICATION FILED MAB.. 29, 1904.

4 SHEETS-SHEET 2.

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No. 784,587. PATENTED MAB.. 14, 1905.

H. H. MGINTIRE.

PHOTOGRAPHIC PRINTING APPARATUS.

APPLICATION FILED HAR. 29, 1904.

4 SHEETS-SHEET 3.

PATENTED MAR. I4, 1905.

R. R. MCINTIRR, PRUTOGRAPRPG PRINTING APPARATUS.

APPLICATION FILED MAR. 29, 1904.

4 SHEETS-SHEET 4.

Patented March. 14, 1901 PATENT OFFICE.-

HERVEY H. MCIN'IIRE, OF SOUTH BEND, INDIANA.

PHOTOGRAPHlC-PRINTING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 784,587, dated March 14, 1905.

Application filed March 29, 1904. Serial No. 200,641.

T0 {IJ/Z whom, t 777mg/ concern.'

Be it known that I` HERvEY H. l\IcIN'ri1-u1, a citizen of the United States, residing at South Bend, in the county ot' St. Joseph and State of Indiana, have invented certain new and uset'ul Improvements in Fhotograplric-Printing Apparatus; and I do hereby declare the vfollowing to be a full, clear, and exact dcscription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in photographie-printing apparatus, and has for its object to provide a machine o't' this character in which a number ot' photographs may be printed from the same negative with a uniform exposure, the parts and mechanisms being so arranged as to operate synchronously to avoid overexposure or premature exposure and also being' adj ustalole to regulate or change the period ot' exposure.

The invention embodies means tor controlling a source of light to be emitted on a negative, such means being adjustable to vary the ti me ot exposure and operating simultaneously with a platen which holds the sensitized elements in contact with the negative and which makes its contact instantaneous with the emission et' the lig'ht, the movements of the platen serving to reset the light-controlling means at each operation of the former.

For a 't'ull understanding et' the merits and advantages of the present invention reference is to be had to the following description and the accompanying' drawings, in which Figure I is a longitudinal vertical section on the line e a, ot Fig. 2. Fig. 2 is a bach view with the back ot the case removed, showing the operating mechanism in elevation. Fig. 3 is a front elevation ot' the upper end oi the apparatus, showing the means for setting the light-controlling means and predetermining the period ot' operation therefor. Fig. 4 is a transverse section through the case on the line I) b of Fig. 2, showing a plan view et' the operating mechanism. Fig. 5 is a detail, partly in elevation and partly in section, of the light-controlling means andthe means for controlling the operation o't' the same. Fig. 6 is a transverse section on the line c e in Fig. 5, showing the manner et mounting the indicator upon the light-controlling' mechanism; and Fig'. 7 is a bottom view in elevation ot' the plunger and its valve, which is carried by the light-controlling' mechanism.

Making renewed reference to the drawings, wherein like characters of notation indicate corresponding' parts appearing' in the several illustrations, and reference being had thereto, l dcsig'nates the rear wall of a case or cabinet, 2 the front wall thereof, and 8 an inclined face-board or table having' an opening therein which contains a glass t and upon which the negative may be supported, or the glass I may be dispensed with and the negative litted directly within the opening, as occasion may require. Beneath the face-board or table 3 is a light-coimiartment 5, which is separated from the rest of the case'by means of the vertical upright wall 6 and a bottom board 7, the upright wall 6 extending' to the top of the case and having an opening' 8 therein, the purpose ot' which will appear hereinafter. By this construction it will be seen that the light in the light-compartmcnt 5 is coniined therein and that the opening mechanism is in a compartment separate from the light, so that there will be no admission ot'.

light into the light-compartment from the opening 8 in the ease or from the back ot" the case it' the back board I is removed to gain access to the operating mechanism.

A suitable source ot' light, such as an electric lamp 9, is mounted iu the light-compartment and is supplied by means of a conductor 0, which extends upwardly and connects near the top of the case with a switch I0. The switch consists of a relatively lixed member Il and a hinged member 12, both otl which have suitable binding-posts 13 for connecting with the conductors, the current entering through an opening' in the top of the case by the conductor and escaping by means ot' the conductor c, which, as shown in Figs. I and 2, is extended down with the conductor u to the lamp 9. Secured to the hinged member of contact 12 of the switch is a rod 14, which depends within the case and 1s pivoted at its lower end to a lever l5, fulcrumed upon an IOC arm 16, that projects from a cross-plate 17, which is fixed to the framework or case of the aj'iparatus. To the free end of this lever 15 is pivoted a dog 18, which is normally in longitudinal alinement with the lever 15 by means of a spring 19. The dog,`however, is permitted to tilt upwardly7 against the action of the spring upon the upward movement of and contact with the timing device, as will be hereinafter set forth.

The making and breaking of the circuit in the electric conductors is accomplished by means of the movement of this lever, and its connection 14 with the switch and the means which cooperates therewith for controlling the period of exposure or the time that the light will be emitted upon the neg'ative comprises a rectilinear-movable and rotary adj ustable member 20, which in the present instance comprises a drum mounted on a piston-rod 21 and having' a portion of its periphery `formed with the lugs or projections 22 of different leng'th, the lugs or projections extending longitudinally of the drum and being' adapted to be broug'ht into operative position with the dog 18 on the lever 15 in its reciprocating movement. Provision is made for adjusting the drum so as to bring any length lug or projection into alinement with the dog, whereby the latter will be engaged with the drum for a longer or shorter period, as may be required for different exposures. rlhe reciprocating movement of this drum is in a vertical direction, and the downward movement thereof emanates from its weight; but such movement is retarded by means of a cushioning' device in the bottom of the ease and into which the piston 21 extends. This cushioning device consists of a casing 23, which may contain a liuid-such as air, gas, or water, &c.-and on the end of the piston is a plunger 24, provided with a-plurality of openings 25 and also having depending lugs or keepers 2G, between which and the plunger is loosely fitted acheckvalve 27, which upon the descent of the drinn and the plunger closes the openings 25 and prevents the fiuid beneath the plunger from escaping through the openings to the upper side of the plunger. 1n order to provide for a gradual descent of the plunger, the end of the piston-rod is provided with a duct 28, which may be said to be capillary, so as to permit a limited amount of the iiuid to pass therethrough, so as the plunger may descend slowly. A suitable central opening' is formed in the valve and adapted to aline with the duct 28, as shown in Fig. 5. A means for g'raduating or controlling the How of liquid to the upper side of the plunger upon the descent thereof may be provided by a rotary adjustable valve, which forms the subject-matter of a copending' application filed on August 3, 1903, and bearing Serial No. 168,054; but such a valve may not of necessity be utilized, as the construction shown in the present invention may be suiiicient. Upon the upward movement of the drum and plunger carried thereby the fluid will escape to the under side thereof through the openings 25, as the valve will be relieved of the pressure on the under side and become unseated from the plunger, but will beheld suspended therefrom by means of the keepers 26.

For the purpose of imparting a rotary movement to the drum, so as to bring any of the projections 22 thereon into alinement with the dog 18, the upper end of thepiston-rod, which projects above the drum, is squared and fitted with a bushing 29, which is journaled in a sleeve 30. The sleeve is secured to an arm of a standard 31, which is mounted ou a transverse shelf 32 in the case, and to the other side of this standard is secured a plate 33, which extends forwardly through the opening 8 in the front of the case and has its Vfront face formed into a segment which provides a dial 34. This dial is provided with a plurality of apertures 35, and beneath the apertures are numbers or characters which correspond with the number of projections 22 on thc drum 2O and by means of which the time of the descentof the drum may be predetermined. Secured to or integrally formed on the bushing 29 is an indicator-arm 3G, provided with a spring catch or pin', which is adapted to engag'e in any one of the apertures on the dial, so as to set the light-controlling drum for different periods of exposure.

From the description thus far given it will be observed that the emission of the light is controlled by means of the drum 20, which during its descent engages with the `dog 18 of the lever 15 and trips the latter, so as to force the outer end thereof upwardly, and through the connection 14 the contact member 12 will be brought into engagement with the member 10 of the switch, thereby making' the circuit and emitting' the light, and that upon the upward movement of the drum the lever 15 will be tilted and the connection 14C drawn downwardly to break the contact, and this is permitted without any undue strain upon the level' and its connecting-rod by virtue of the spring-pressed dog, which is permitted to yield against the action of the spring and be tilted upwardly, as shown in dotted lines in Figs. 1and lt will also be seen that when it is desired to change the time of exposure the drum 2O may be rotated by means of the indicator-arm 36, which has a fixed engagement with the piston-rod of the drum, and this rotation will bring a different lengthed lugor projection 22 into alinement with the dog 18 of the lever, so that the lever will be tripped and the contact made for just such a period as maybe required to print the picture, it being' understood that each of the members or characters on the dial corresponds tothe units of time that the particular projection which has been brought IOO in alinement with the dog will be in engagement therewith, so that if a four-second exposure is required the indicator-arm is set and the spring-catch engaged in the aperture over the numeral 4 and the fourth lug, beginning from the shortest one on the drum, will be in alinement with the pawl.

rlhe present invention in addition to the means for controlling the emission of light, as above explained, embodies mechanism for resetting the light-controlling means and meehanism for synchronizing the contact of the platen which carries the sensitized element with the light source, together with means operating to automatically retain the light-controlling drum in an operative position, the said last-named means being operated upon by the platen-operating means to release the light-controlling drum and permit it to operate. These several means and mechanisms are controlled by the movement of a hand-lever 38, which is secured to a rock-shaft 39, fulcrumed in the bottom of the case, as at 40, and on the end of this rock-shaft is an arm 41, which connects with one arm of a bellcrank lever 42 by means of a link 43, and the other arm, 44, of the bell-crank lever is pivotally secured to a rod 45, which extends upwardly and has its upper end pivoted to the cross-bar 46 of a platen-frame 47. The platen-frame has two forwardly-projecting arms 48 at each side thereof, and these arms are stayed or braced at an intermediate point by a cross-head 49, the ends of which project beyond the sides of the arms to provide pintles, which are pivoted in bracket-arms 50. The bracket-arms 50 project from the front of the standard 31 through the opening 8 in the front of the case, so that the platen 51, carried by the ends of the platen-arms, may have a free swinging movement on the outside of the case above the face-board 3, while the platen-'frame is confined within the case and is moved up and down to vibrate the platen by means of the movement of the rod 45 and its connection with the hand-lever 88. Vltwill thus be seen that the lever 38 controls the raising and lowering of the platen 51, and all the other mechanisms, such as the light-controlling mechanism and the resetting means for the light-controlling mechanism, are in turn controlled by the platen-frame.

Pivoted to the cross-bar 46 of the platenframe and depending therefrom is a link 52, the lower end of which is pivoted to a lever 53, fulcrumed upon an arm 54, which projects downwardly from the cross-plate 17, and on the end of this lever is a roller 54, which is adapted to engage with the bottom of the light-controlling drum 20 when the latter is elevated, and its elevation takes place upon the downward movement of the platen-frame, which rocks the lever 53, through the link connection 52, on its fulcrum and forces the free end, carrying the roller, upwardly to the position shown in dotted lines in Fig. 1. rllhe light-controlling` drum is held in an elevated position by a swinging dog 55, pivotally hung on an arm 56, which is secured to the standard 31, and the upper end of this dog prejects upwardly into the path of an :uljustable pin 57, carried by the cross-bar 46 of the platen-frame.

As shown by dotted lines in Fig. 1, the swinging dog is engaged with the bottom of the light-controlling drum, and the platenframe is lowered, so that the adjustable pin 57 is out of engagement with the upper end of the dog; but upon the upward movement of the platen-frame and the contact of the platen with the negative the adjustable pin 57 contacts with the upper end of the dog and trips the latter to disengage the lower end thereof from the light-controlling drum, as shown in full lines in Fig. 1, so that the drum will be permitted to descend and trip the srniiLgY-dogl 18 on the end of the lever 15, which prior to the descent of the drum is directly beneath the same, as shown in dotted lines in Fig. 1, but which when engaged therewith will, through the connection 14, make the Contact of the electric switch to emit a light upon the negative, as before explained.

On the side of the case is a guide which may have a suitable not-ch 59 near one end Assuming that the parts are in the position shown in full lines in Fig. 1, with the platenframe raised and thcplaten lowered and the light-controlling drum lowered to the limit of its downward movement, which latter position is indicated in dotted lines in Fig. 1, and it is desired to print pictures from a negative which has previously been positioned upon the face-board, the hand-lever 38 is released from its engagement with the notch 59 in the guide 58 and pulled forwardly. This forward movement of the lever will lower the arm 44 of the bell-crank lever and draw the rod 45 downwardly, lowering the platen-frame, which by the link connection 52 will push one end of the lever downwardly and raise the other end thereof, the roller contacting with the bottom of the light-controlling drum and elevating that element to the position shown in dotted lines at the top in Fig. 1. During the upward movement of the light-controlling drum the spring-dog 18, carried by the lever 15, will be tilted upwardly by its engagement with the drum, and such movement will maintain the switch 10 in an open position,y which is indicated in dotted lines in Fig. 1. fhen the light-controlling drum has reached the limit of its upward movement, the swinging dog engages beneath the drum and holds it elevated. lith the parts in this position the platen 51 is elevated, and the sensitized ele- IOC) IIO

ment on which the picture is printed may be placed upon the negative or lixed to the platen preparatory to the contact thereof. New by pushing' the hand-lever 38 back the position et the parts is reversed, the platen-frame being' elevated and the platen lowered to make the contact, and the lifting-lever 53 is also disengaged from the bottom ot' the drum. As the platen-frame reaches the limit et its upward stroke the adjustable pin 57, carried thereby, will contact with the end ot' the swing'ing dog 55 and disengagc the lower end thereot` from the light-controlling drum and permit that element to descend, which, as be- Atore stated, is retarded in its downward movement by means of the cushioning device located in the bottom et' the case. Simultanously with the release of the light-controlling drum the spring-pawl 18 on the end ot' the lever 15, which has previously been extended into alinement with the lever by means et' the spring, will be eng'ag'ed with one of the projections 22 on the drum, and the outer end ot' this lever will be pushed upwardly to make the contact at the switch, thereby completing' the circuit and emitting a light upon the neg'ative. During the descent otl the drum the lever 15 remains in this position until the end ot the projection 22 with which it is engaged is reached, when the spring-dog 18 will be lree trom contact with any portion ot' the drum, and the weight ot' the lever 15, the connecting-rod 14, and the hinged contact 12 will cause the circuit to be broken, whereupon the light will be extinguished, and although the drum may continue to descend it will not at'- Vt'eet the exposure, because the switch-lever 15 cannot be tripped again to make the contact until the drum is again elevated. It will therefore be seen that an overexposure is prevented, and the device may be lett unattended without destroying the picture. Upon the next forward tln'ow ot' the lever the platen will be raised, and the operator may remove the sensitized element and replace it by another and continue theln'inting operation as required.

'.lo assist the operator in restoring the lightcontrolling drum to operative position, the cross-bar LG at the rear end of the platenframe has a pair of' weights 59 suspended therefrom, and these weights may be heavy enough to automatically restore the parts to operative position when thehand-lever is disengaged from the notch 59 in the guide 58, and in such case they would have to counterbalance the weight ot' the drum and the liriction between the parts ol the operating mechanism.

1 claim- 1. A photographic-printing apparatus provided with 'a movable platen, means for manually operating the platen, and means controlled by the movements ot' the platen for emitting a light to a negative and Vfor resetting the light-emitting means.

2. A photographic-printing apparatus provided with a movable platen, means for manually operating the platen, means lor controlling the admission ot' a light to a i'ieg'ative tor a predetermined period, and means operated by the platen for resetting the light-controlling means.

A photographic-printing apparatus provided with a movable platen, means for operating the platen, means cooperating' with the platen-operating means for emittingl a light to a negative for al predetermined period, and means operated by the movements ot the platen for resetting the light-emitting means.

4. ln a photographie-printing apparatus, a case having a source ot' light therein and provided with means tor holding a negative and a sensitized element, a platen, means lor manually operating the platen, means Vtor emittin a light to the negative, and means operated by the platen-operating means for restoring the light-emitting means into operative position.

5. 1n a pliotographic-printing' apparatus, a case having a source ol" light therein and provided with means Vtor holding a negative and a sensitized element, a movable platen, means tor manually operating the platen, means` lor emitting' a light to the negative lor a predetermined period, said means operating' simultaneously with the contact oli' the platen, means controlled by the movement olj the platen lor resetting' the light-eniittii'ig means, and means operated by the platen-operating means lor releasing the light-en'iitting means.

6. ln a photographic-printing' apparatus, a case having' a source ol'l light therein and provided with means 'for holding' a negative and a sensitized element, a movable platen, a platen-'frame movable with the platen means connected with the platen-trame loroperating the platen, a movablemember lor controlling the emission ol light to the negative, means carried by the platen-trame and operating simultaneously with the contact el: the platen to release the light-emitting means, and means operated by the platen-operating means lor bringing' the' said movable element into operative position.

7. A photographic-printing apparatus provided with a movable platen, means lor operating' the platen, comprising a platen-frame, a hand-lever, connections between the platenframe and the hand-lever, means for emitting a source otl light to the negative, and means 'tor controlling the admission of the lig'ht lor a predetermined period.

8. ln a photographic-printing apparatus, a case having a source ol'I light therein and provided with means for holding' a negative and a sensitized clement, a platen, a platen-trame movable with the platen, mechanism connected with the platen-frame for operating the platen, a movable member for controlling the emission of light to the negative, means for setting said member to predetermine the period otl exposure, and means operated by the movement of the platen-frame for controlling the operation of the movable element.

9. ln a photographic-printing apparatus, a case having a source of light therein and provided with means for holding' a negative and a sensitized element, a movable platen, a platen- :lrame movable with the platen, means connected with the platen-frame for manually operating the platen, a movable member for controlling the emission of light to the neg'ative, means for operating' upon said member for predetermining' the period of exposure, means operated by the platen-operating' means 'for bringing the movable elements into operative position, and means carriedby the platen- T'rame, operating simultaneously with the contact of the platen, to release the movable member.

10. ln a photographic-printing' apparatus, a case having' a source of light therein and provided with means 'for holding a negative and a sensitized element, a platen, a platen-frame movable with the platen and disposed in the case, a hand-lever, connections between the platen-'frame and the hand-lever for operating the platen, a vertically-reciprocatory drum in the case, a cushioning' device in the case to regulate the descent of the drum, means formed on the drum for controlling the admission or' light to the case for a predetermined period, a lever operated by the platen-operating' means for elevating the drum, means for holding the drum in an elevated position, and means carried by the platen-frame and operating on the drum-holding means simultaneously with the contact of the platen to release lthe drum.

11. In a photographic-printing apparatus, a case having a source of light therein and provided with means for holding a negative and a sensitized element, a platen, a platen-frame movable with the platen, a hand-lever, jointed connections between the hand-lever and the platen-frame for operating the platen, a vertically-movable drum having a plurality of .projections of different length upon its periphery, means beneath the drum for retarding the descent thereof, an electric switch, a contact-lever arranged within the path of the projections on the drum and connected with the switch to make and break an electric circuit to emit light to the negative, means operated by the platen-frame for elevating the drum, a dog for holding' the drum elevated, means carried by the platen-'frame to trip the dog to release the drum, means for adjusting the drum to bring' one of the projections thereon into the path of the switch-lever, and means cor'perating with the last-named means for predetermining the period or' contact between the switch-lever and the projections on the drum.

12, A photographic-printingapparatusprovided with a manually operated platen, a platen-frame for the platen, a reciprocatory member, a dog engaging said member to hold it elevated, means carried b v the platen-'frame adapted to trip the dog and release the reciprocatory member, an electric switch operated by the reciprocatory member, and an electric lamp connected to the switch.

13. ln a photographic-printing apparatus, a platen, a platen-frame, a reciprocatory member controlled by the movements of the platenframe, a switch controlled by the reciprocatory member, and a lamp connected with the switch.

14. 1n a photographie-printing apparatus, a platen, a platen-frame, a reciprocatory member, means to hold the reciprocatory member elevated, means carried by the platen-frame to eng'age the first-mentioned means and release the reciprocatory member, means connected with the platen-frame to elevate the rereciprocatory member, and an electric-lighting' circuit controlled by the reciprocatory member.

15. In a photographic-printing apparatus, a platen, a platen-frame, a reciprocatory member, means to hold the reciprocatory member elevated, means carried by the platen-frame to eng'age the lirst-mentioned means and release the reciprocatory member, a lifting-lever connected with the platen-frame and adapted to elevate the reciprocatory member, and an electric-lighting circuit controlled by the reciprocatory member.

16. In a photographic-printing apparatus, a movable platen, a platen-'frame movable therewith, means connected with the platen-frame for operating' the platen, a reciprocatory member controlled by the movements of the platenframe, and an electric-lighting circuit controlled by the reciprocatory member.

17. In a photographic-printing apparatus, a movable platen, a platen-frame movable therewith, means connected with the platen-frame for operating the platen, a reciprocatory member controlled by the movements of the platenframe, a lever 15 adapted to engage the reciprocatory member, an electric switch connected with said lever, a lamp, an electric'circuit connecting' the switch and lamp, and means Vfor adjusting said reciprocatory mem ber to change the period of contact with the lever.

18. lfn a photographic-printingapparatus, a movable platen, a platen-'frame movable therewith, means connected with the platen-frame for operating the platen, a reciprocatory member controlled by the movements of the platenframe, a lever 15 adapted to engage the reciprocatory member, an electric switch connected with said lever, a lamp, an electric circuit connecting' the switch and lamp, means forad- IOO justing said reeiproeetory memberto Change the period ot' Contact with the lever, and ai seele to predetermine the period of Contact.

19. In a photographie-printing apparatus, a movable platen, ai platen-frame movable therewith, means connected with the platen-frame for operating the platen, :t reciproeatory member controlled by the movements ofthe platenfrzime, a lever l5 adapted to engage the reeiproeatory member, an electric switch connected with the said lever, :i lamp, an eleotrie circuit connecting' the switch and lamp, means for changing the period of Contact hetween the lever l5 and the reeiproezitor\T member comprising e plurzilitgv of projections of different length on the reeiproezitor)Y member with which the lever Contacts, :t guide-rod nonrotatzihle in the reeiproezttory member, and 2111 indicator-mm rigid on the guide-rod, and :L scale over which the indicator moves, substantially as speeilied.

1n testimoni7 whereof l :Ll'ix my signature in presence of two witnesses.

HERVE Y H. MC1 NTI RIC.

lVitnesses:

( Eolie 1c OL'rsei 1, HUeo Ourson.

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