GB2298050A

GB2298050A - Photographic printing apparatus

Info

Publication number: GB2298050A
Application number: GB9603292A
Authority: GB
Inventors: Peter Frederick Holt
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-02-17
Filing date: 1996-02-16
Publication date: 1996-08-21
Anticipated expiration: 2016-02-16
Also published as: GB9603292D0; GB2298050B; GB9503100D0

Abstract

The apparatus comprises a base 20 which supports a creative easel frame 12 and a door frame 14 able to be used to position a viewing screen, light sensitive paper, and borders. The apparatus also includes a mirror platform 16 and may be positioned under an enlarger 10 with the flexible mirror and frames in adjusted orientations. The apparatus is collapsible for transit and may be used for back projection for slides.

Description

PHOTOGRAPlI IC APPARATUS.

The apparatus comprises of a viewing screen constructed on an easel base together with a opaque screen mounted in a adjustable easel door,able to record an image on light sensitive materlal,also being able to expose that image into a well for registration ,of that material to create a border on that said material.

Photographic easels at the present time are of a flat bed type, with the light sensitive material being directly below the image being exposed,where by the user does become in contact with light force,being able to create the said image.The photographic apparatus in the claims, as a viewing screen facing the user in the horizontal mode, creating the image through the said screen,and being able to create a border on that said image,via a border apparatus easel.

Statements, of Invention According to the present invention there is provided photographic apparatus comprising a viewing screen1 image projecting means operable to project an image onto the screen to be viewable, and means to receive light sensitive material and to locate the material to record the image shown on the screen.

Preferably the means locates the material adjacent the screen to record the image. Preferably the means is movable between a first position in which the means is spaced from the screen to permit viewing of the image on the screen, and a second position in which material held thereby is located to record the image.

Preferably the means is pivotally movable between said first and second positions. The means may be pivotally attached to the screen.

Locating means may be provided on the said means to position light sensitive material appropriately for recordal of an image. The locating means may comprise a recess in which the material locates. Retaining means such as a clip or similar member may be provided to retain material on the said means. Preferably the means is adjustable to one or more intermediate positions between said first and second positions. The means may also be adjustable in a generally axial direction.

Preferably the screen is arranged to allow an image thereon to be viewed directly from a position where the viewer presents no obstacle to the passage of the projected image to the screen. Preferably the image is projected onto one side of the screen, to be viewable on the other side.

Preferably the orientation of the screen relative to the projecting means is adjustable, and may be pivotally adjustable. Adjustment in a direction generally along the pivot axis may also be provided.

Preferably catch means is provided to releasably retain the means in said second position. The catch means may be magnetic.

The screen may be opaque and may comprise a grain screen.

Alternatively or additionally the screen may be substantially transparent, and may comprise glass plate, perspex sheet or other suitable material.

Preferably reflecting means is provided to reflect a projected image onto the screen. The reflecting means may comprise a substantially concave reflective surface. The reflecting means may be flexible to provide for selective adjustment of the configuration of the reflecting surface. The reflecting means may comprise a metallic mirror.

Preferably the position of the reflecting means relative to the screen and/or projecting means is adjustable, and may be pivotally adjustable, and preferably axially adjustable.

Preferably the apparatus further comprises border means locatable on the said means and/or the screen to enable a border to be produced around the image on the material. The border means may be locatable with transparent retaining means such as tape. The apparatus may further comprise cover means to cover the area on the material on which the image has been or will be recorded during exposure of the material to light for production of a border with border means.

Preferably the apparatus is collapsible for storage. The apparatus may be pivotally collapsible about the aforesaid pivot(s).

Preferably the light sensitive material comprises photographic paper.

The projecting means may comprise a photographic enlarger.

The invention also provides photographic easel comprising a member to hold light sensitive material to record an image projected thereon, the member comprising locating means to locate the material in the correct position thereon for exposure to the image.

Preferably the locating means comprises a recess in which the material is locatable. The recess is preferably so sized as to retain the material with little or no movement therein.

The easel may further comprise border means preferably locatable in the recess to produce a border around an image recorded on or to be recorded on the material, upon exposure of the material to light. The easel may further comprise a shielding member locatable generally over the area defined by the border means to shield said area from undesired exposure to light during production of a border.

The invention further provides a method of recording a photographic image, the method comprising projecting an image onto a screen to be viewed, then introducing light sensitive material to a location to record the image shown on the screen.

Preferably the material is located adjacent the screen to record the Image. The material is preferably located against one side of a transparent or opaque screen to record an image projected onto the other side of the screen.

A border member may be provided to produce a border around an area on the material on which an image recorded or is to be recorded. The border member may be located on the screen and/or material.

A shielding member may also be provided to be located over the area on the material on which the image is recorded or is to be recorded to shield that area during exposure of the border area thereof during recordal of the border from the border member.

A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawings in which: Figure 1. shows the creative easel ,on the enlarger base with enlarger column and lamp in place.

Figure.2.shows the creative door in the easel frame, from the front angle.

Figure.3. illustrates the detail workings of the easel within the frame, door attachment and side bracket detail.

Figure.4 The explosion detail of the top of the easel door and easel frame.

Figure.5 shows the channel section of the creative easel frame cutout, with large detail of top of frame easel door.

Figure.6 With the creative easel door open to the full showing detail of opaque perspex out,and poistion were photographic paper slots in.

Figure.7 showing detail of underside of mirror platform leg, and foot ferrule and including bracket position.

Figure.8 with the mirror plate out the way and the easel fixed to a more vertical position is now ready for back projection from a slide projector.

Figure.≈illustrates the collapsed easel and base less mirror to packed separate.

Figure.iO. showing full detail of the creative border easel, with exploded view of masking and border workings.

Referring to the drawings, Fig 1.comprising the enlarger column and base, 10.with creative easel 12,and the door 14. we have a easel base no 20.holding the creative mirror and platform 16,and 18. the creative easel frame is made on adjustments to 28, and 32,wing nuts. the movement is made in the continuous grove,30.the pivot to the frame is made on 13.and the easel door pivots on Fig 2.38.with creative door retaining the unexposed paper in Figi 40.you can adjust the mirror platform on the bevelled groves 26,also on a linear path by a continuous galvanized steel rod. lithe degree of angle is governed by the movement of the platform stay,24.

The degree of angle and movement to the copper backed mirror is made by bending the mirror to the desired effect on the elasticated double sided tape,37.By adjusting the enlarger head height and lowering it.the image can be created.lO.lhe creative door,14.as an opaque screen fixed in the external rebate on the door, fig.4. 17. together with door handle Fig 4,21.and magnetic catch, Fig 2.34.and buffer point for catch,Fig2 41.

The creative door easel frame,as a clear sheet of perspex at the rear of the easel fixed in with the aluminium metal surround, Fig 4.27.metal surround 12.

the easel frame as a iOmm plywood cutout surround to retain border masks and grain screens, Fig 4.15. the plywood aperture is then lined with iOmm box channel.

Fig 5. 19.To retain the unexposed material,we have to retain it on the inside of the creative door, Fig.40.

and Fig, 6.40.

The photographic apparatus can be used with most colour or monochrome enlarger heads on the present market today,the apparatus as the means of creating an image through or by an enlarger head, or by slide projector or by,or with back projection,Ftg ss.39.method.

The user does not have to be technical minded to use this apparatus,as anyone in the photographic darkroom area, The user would be of a type, like a photographer, a well informed amateur photographer, a or possibly a professional photographer, or other well informed persons. To start to create,and expose an image we must start to assemble, and to prepare the apparatus.

To assemble,place the easel on the enlarger base, Fig 1.

10, the enlarger easel head should be raised to the top of the column, Fig1.10.

The creative easel base Figl.20.now raise the easel frame, 12. and door, 14. then connect the adjustable stays 28. to 30. with the wing nuts 32,now you can raise the mirror platform 16.until the leg 24 rests in the bevelled grooves,26.

you now have to decide whether you are going to have a creative border after making your first image, if so you will have to put a border mask in the creative easel frame recess, Fig S.19.Example,say we are using a mask in the recess,first we will have to decide the type of paper to use, and secondary the type of image,on what film, slide or colour negative, or monochrome negative.

When you have decided,place it in the enlarger head, fig. 1. 10. swItch off the room light, and the put on the enlarger timer, adjusting the column height, moving the flexible mirror,Flg.1.18.you will possibly have to adjust main easel frame,Fig.1.12.with the door closed,you can now create your image to your liking. At this point,it is recommend not to have the enlarger lamp on for more than 180 seconds you decided on the exposure time, filtration required. we about ready to expose the image.

SWITCH ON THE ROOM LIGHT. now pull down the creative door,Figi.i4.towards you be careful not to move the easel, place the black masking card face down into the continuous slots in the bottom and top of the door frame. SAY WE ARE USING POSITIVE PRINTING PAPER. first we must have paper at the ready,first we want a spare light prove box, or other safety place to place our paper after the first exposure. SWITCH OFF THE ROOM LIGHT. and no dark room light on, take a unexposed sheet of paper out of the bag. NOW WITH THE EMULSION facing away from you now CUT THE TOP RIGHT HAND CONE OFF. watch your fingers, now place the unexposed paper into the slots, on top of the black card,the emulsion should be facing the main easel frame, Fig 2.12.close the door to the magnetic catch, NOW SWITCH ON THE EXPOSURE TIMER.DONE. bring down the easel door, be careful when taking out the print from the easel door.

Now place it into a light prove box,or paper bag, NOW YOU CAN SWITCH ON THE MAIN ROOM LIGHT.

You will now have take the creative easel off the enlarger easel base,Fig1.10. you do not have to dismantle the creative apparatus, just placed out the way, so we can bring the creative border easel,Fig 10 onto the enlarger base. Place border easel so as tie 25mm hinged flap is on the right,under the main enlarger head, Fig1 10. we require the enlarger head raised to full height,now take out of the enlarger head carrier the colour slide we have been using, switch off the the main room light, and put your monochrome dark room light on, you can see better. Now switch the enlarger timer on ,so as the ray of light covers all the creative border easel.

you have a creative border mask Fig.10.46.with a glass surround this is so you can create the borders in, fine lace pattern Fig.10.44. which is then transparent tape over.At this point it is a good idea to try a blank sheet of paper in the border,Fig.10.42.the paper drops in a well system,the blanking off easel strip.Fig i0.47.this will blank the piece with the corner off,and you can try the Image blank easel,Figi0.43. with the handle, Figi0.45.Wlien you have tried all this,we can print the borders. Tests can be carried out to see what exposures, and creativity, you require.

Place the creative easel handy as this will be picked up in the Dark.Then with the main light off take your undeveloped print out of the safe,or bag.lt does not matter if you touch the main easel in the dark as you are dropping the print in the well,with the corner off on the right hand bottom corner, now fold the flap down with care,now pick up the creative border mask and place it in the well to the left of the strip, guidIng it in the the with the left hand, by felling for the well edge.EXPOSE THE BORDERS.now lift the main easel out.FigiO.with handle.also lift edge of blanking mask on right.You can now take the print out of the easel where the blank corner was cut off,place into a developing drum.YOU CAN NOW SWITCH THE LIGHTS ON.

Develope the print in the normal way, there is no nead to use any special developing techniques only the manufactures.

FIG 8.with no 11.13.16.24.26.31.32.39.and Fig 1.14, closed opaque screen.The easel is now in a position, for rear slide projection of one or more.

The image is then created through the opaque screen, and copied onto film, via a camera, and possibly using grain screen in the the creative opaque door,Fig1.14.t 40. or any other screen, which is transparent.

You will notice that the creative mirror.Fig 1.18.

as two extra adjustment holes Fig 3.35.to alter the apparatus in the vertical mode with the mirror platform Fig B.16.dropped on the top of the wood bevelled groves. Fig 3.16L26.

SPECIFICATION PHOTOGRAPHIC APPARATUS.

Creative photographic printing easel.

In Fig 1.we see the apparatus assembled ,with Fig 1.10.as an example, with a photographic enlarger to create the image.The material required to build the apparatus would be, MAIN CREATIVE BASE Fig 1.20.

Supply, one piece of 20mm plywood X 50cmx50cm.treated.

Supply, 10 No.bevelled hardwood wood pieces,50cmlong x 15mm base x 10 mm high.Fig 1. 26.fixed in position as plan.All strips to be impacked wood glued to base.

Supply 2No,metal brackets to be recessed into base 20.as position iOmm from front end,22.and slots cut 6mm high x iiOmm long.brackets to be drilled at 60mm centres,all to be stained and varnished,with baize cloth finish bottom.

MAIN CREATIVE EASEL FRAME.Fig 1.2.4.5.No12.the external frame. is contructed out of, 1 ight gauge aluminium channel section,Fig 1, & 4.no12. Two No 49.5cm.and two No 43.5cm.

high,external measurements.TE,e two side section should be 20mm from outside edge,leaving room for two no holes Smm dia.Fig 3.13.also two holes should be drilled 20cm x Smm die x 20cm from the bottom,Fig i.36.Please note these nuts and bolts,20mm x Smm dia,with large mush head should be fitted, prior to fixing tOmm plywood surround 49.2.cm x 4i.Scm.Fig 4.t 5.Nol5.This panel will have section cut out the centre,when finished will be accepting photographic paper,40.5 x 30.5.the wood should be40.7cm x 30.7cm this will the be lined with iimm wide x 9mm high aluminium channel section to be fitted.Fig 5.19.all these four pieces will be glued in place.Also at this stage the clear perspex sheet should be fitted,4mm thick x 49.2cm x 41,5cm.Fig 4.t5.No 27.The bottom section and two sides are connected via the retaining bolts to, the main side frame legs,to the metal brackets, Fig 3.13.22..All metal should be painted black.and all wood stained and varnished.

The main easel frame cutout, paper recess,can have a border mask,to al low,border image to take place later, with Fig 10.50.Easel frame to catch buffer at top.Fig 4.4L CREATIVE EASEL DOOR.

Supply hardwood rebated door frame as Fig 4.14.these will be, two at 44.2.cm.x 34.8cm high x t5mm xlOmm all corners to have mortise and tenon Joints, impoked wood glued.

In the front rebate 5mm x 5mm.fix,4mm opaque perstex spree 43.2.cm x 33.8cm To be fixed with transperant impack glue.

Fig 4.14.17.with the dull side to the main easel frame.

Supply two No stainless steel metal strips Imm x 43,3cm long, drilled at 60mm centres and screwed to the top and bottom of the easel door.Fig 4.6.No 40.the leading edge of the imm thick should be rounded off and taped over with plastic tape.

SPECIFICATION cont:- Creative Photographic Printing easel CREATIVE EASEL DOOR cont: The metal strips are for print retain slots, should be fixed with No4 x 6mm long counter sunk steel screws.

Supply Light gauge half moon,metal handle.Fig 2.

and 4.No 21.supply one piece of brass piano hinge, 43.cm.long drilled at 60mm centres,fixed at the bottom of the door.Fig 2.38.and Fig 3.Supply one magnetic catch fixed on the rail of the door.Fig 1.34.and Fig 2.fixed with two No 6 x 1Omm steel screws.All wood stained and varnished.Supply one piece of black faced stiff card, for. prlnting door easel.Fig 6.40.40.5cm x 30. Scm.

BRACKETS.

Supply two No metal side support brackets, Fig 1 L 3.No 28.22mm wide x imm thick,21cm long fixed as Fig 1.32 to 36.supply two No 4mm x 20mm bolts, having wing nuts for easy adjustment.Fig 1.L3.32.bracket being fixed to easel frame with retaining type nuts.Fig 1.36.

All metal to be black painted.

MIRROR PLATFORM.

Platform base, to be 15mm good quality plywood,Fig 1 16.

35,5cm x 30cm.Supply wrap over type continuous hinge Fig t.9.No3i.connecting to 6mm dia, galvanized metal rod,52cm long having retaining nuts and washers.

Fig 1.3. & 9.No 11.the mirror hinge is fitted with 10mm No 6.wood screws.Platform stay Fig 1.L7.No24.made of 15mm box sectional steel .13cm long, to rubber foot ferrule.Fig 7.25.the stay bracket,Fig 7.23.to made of two pieces of 2mm flat metal,shaped as fig 7.23.55mm long and bent 25mm each way, taking corners of as plan.

Fig 7.23.supply one bolt,6mm dia.30mm long.fixed with two No wood screws,10mm No6.fixed either side. Supply six strips of double sided elasticated tape to top of mirror easel.All wood to painted black.

Supply one copper backed mirror,fig i.2.Noi8.this to is to lined at the back of the mirror,connecting side to elasticated tape,with six pieces.Mlrror size,26cm K 20cm CREATIVE BORDER EASEL.

Supply one piece of plywood 15mm thick good quality, 50cm.x 40cm.also supply one piece of iOmm plywood SOcm.x 40cm.Now cutout the centre of the 10mm plywood.Fig 10.

42. & 50.It will have to be 40.6cm the long way and 30.6.

sort way, this is for the photographic paper to drop iii the well easily.Now impacked wood glue the two pieces together.Black board black the recess, supply one piece of 5mm plywood strip 25mm wide x 30.cm for border blank.

Fig i0.N47.to be fixed with piano hinge,30.5.x 15mm wide all fixed with wood screws.Supply one piece ground edge plate glass.38cm.x 30.5cm.Supply one hand grip 10cm long.Plate glass to be drilled and counter sunked, placed in the centre of the border mask,Fig 10 45. The image blank should be the size of the @@@@@@ of main easel border mask.Fig 4.27.

SPECIFICATION cont: - Creative border easel. cont: The creative border which is the clear class.Fig 10.44.

can be lined with anything which is transperant,like border lace, coloured tape, masking tape, the choice is yours.

Claims

1. Photographic apparatus comprising a viewing screen, image projecting means operable to project an image onto the screen to be viewable, and means to receive light sensitive material and to locate the material to record the image shown on the screen.

2. Apparatus as claimed in claim 1, in which the means locates the material adjacent the screen to record the image.

3. Apparatus as claimed in claim 1 or claim 2, the means is movable between a first position in which the means is spaced from the screen to permit viewing of the image on the screen, and a second position in which material held thereby is located to record the image.

4. Apparatus as claimed in claim 3, in which the means is pivotally movable between said first and second positions.

5. Apparatus as claimed in claim 4, in which the means is pivotally attached to the screen.

6. Apparatus as claimed in any preceding claim, in which locating means is provided on the said means to position light sensitive material appropriately for recordal of an image.

7. Apparatus as claimed in claim 6, in which the locating means comprises a recess in which the material locates.

8. Apparatus as claimed in any preceding claim, in which retaining means such as a clip or similar member is provided to retain material on the said means.

9. Apparatus as claimed in any of claims 3 to 8, in which the means is adjustable to one or more intermediate positions between said first and second positions.

10. Apparatus as claimed in any of claims 4 to 9, in which the means is adjustable in a generally axial direction.

11. Apparatus as claimed in any preceding claim1 in which the screen is arranged to allow an image thereon to be viewed directly from a position where the viewer presents no obstacle to the passage of the projected image to the screen.

12. Apparatus as claimed in claim 11, in which the image is projected onto one side of the screen, to be viewable on the other side.

13. Apparatus as claimed in any preceding claim, in which the orientation of the screen relative to the projecting means is adjustable.

14. Apparatus as claimed in claim 13, in which the adjustment is pivotal.

15. Apparatus as claimed in claim 13 or claim 14, in which adjustment in a direction generally along the pivot axis is provided.

16. Apparatus as claimed in any of claims 3 to 15, in which catch means is provided to releasably retain the means in said second position.

17. Apparatus as claimed in claim 16, in which the catch means is magnetic.

18. Apparatus as claimed in any preceding claim, in which the screen is opaque.

19. Apparatus as claimed in any preceding claim, in which the screen comprises a grain screen.

20. Apparatus as claimed in any preceding claim, in which the screen is substantially transparent.

21. Apparatus as claimed in any preceding claim, in which the screen comprises glass plate, perspex sheet or other suitable material.

22. Apparatus as claimed in any preceding claim, in which reflecting means is provided to reflect a projected image onto the screen.

23. Apparatus as claimed in claim 22, in which the reflecting means comprises a substantially concave reflective surface.

24. Apparatus as claimed in claim 22 or claim 23, in which the reflecting means is flexible to provide for selective adjustment of the configuration of the reflecting surface.

25. Apparatus as claimed in any of claims 22 to 24, in which the reflecting means comprises a metallic mirror.

26. Apparatus as claimed in any of claims 22 to 25, in which the position of the reflecting means relative to the screen and/or projecting means is adjustable.

27. Apparatus as claimed in claim 26, in which the adjustment is pivotal.

28. Apparatus as claimed in claim 26 or claim 27, in which axial adjustment is provided.

29. Apparatus as claimed in any preceding claim, in which the apparatus further comprises border means locatable on the said means and/or the screen to enable a border to be produced around the image on the material.

30. Apparatus as claimed in claim 29, in which the border means is locatable with transparent retaining means such as tape.

31. Apparatus as claimed in claim 29 or claim 30, in which the apparatus further comprises cover means to cover the area on the material on which the image has been or will be recorded during exposure of the material to light for production of a border with border means.

32. Apparatus as claimed in any preceding claim, in which the apparatus is collapsible for storage.

33. Apparatus as claimed in claim 32, in which the apparatus is pivotally collapsible about the aforesaid pivot(s).

34. Apparatus as claimed in any preceding claim1 in which the light sensitive material comprises photographic paper.

35. Apparatus as claimed in any preceding claim, in which the projecting means comprises a photographic enlarger.

36. A photographic easel comprising a member to hold light sensitive material to record an image projected thereon, the member comprising locating means to locate the material in the correct position thereon for exposure to the image.

37. An easel as claimed in claim 36, in which the locating means comprises a recess in which the material is locatable.

38. An easel as claimed in claim 37, in which the recess is so sized as to retain the material with little or no movement therein.

39. An easel as claimed in any of claims 36 to 38, in which the easel comprises border means to produce a border around an image recorded on or to be recorded on the material, upon exposure of the material to light.

40. An easel as claimed in claim 39, in which the border means is locatable in the recess.

41. An easel as claimed in any of claims 36 to 40, in which the easel further comprises a shielding member locatable generally over the area defined by the border means to shield said area from undesired exposure to light during production of a border.

42. A method of recording a photographic image, the method comprising projecting an image onto a screen to be viewed, then introducing light sensitive material to a location to record the image shown on the screen.

43. A method as claimed in claim 42, in which the material is located adjacent the screen to record the image.

44. A method as claimed in claim 43, in which the material is located against one side of a transparent or opaque screen to record an image projected onto the other side of the screen.

45. A method as claimed in any of claims 42 to 44, in which a border member is provided to produce a border around an area on the material on which an image is recorded or is to be recorded.

46. A method as claimed in claim 45, in which the border member is located on the screen and/or material.

47. A method as claimed in any of claims 45 to 46, in which a shielding member is provided to be located over the area on the material on which the image is recorded or is to be recorded to shield that area during exposure of the border area thereof during recordal of the border from the border member.

48. A screen substantially as defined in any of claims 1 to 35.

49. Means to receive light sensitive material substantially as defined in any of claims 1 to 35.

50. Apparatus substantially as hereinbefore described with reference to the accompanying drawings.

51. An easel substantially as hereinbefore described with reference to the accompanying drawings.

52. A method substantially as hereinbefore described with reference to the accompanying drawings.

53. Any novel subject matter or combination including novel subject matter disclosed, whether or not within the scope of or relating to the same invention as any of the preceding claims.