US2613744A - Punch for printing apparatus - Google Patents

Description

Oct. 14, I952 H. H. HILLMER E'AL 2,613,744

PUNCH FOR PRINTING APPARATUS Filed Feb. 3, 1949 2 SHEETSSHEET l IHI (Ittotneg H. H. HILLMER ET AL PUNCH FOR PRINTING APPARATUS Oct. 14, 1952 2 Sl-lEETSSl-IEET 2 Filed Feb. 3, 1949 Patented Oct. 14, 1,952

PUNCH FOR, PRINTING APPARATUS -Herman H. Hillmer and Henry P. Orent, Omaha, Nebr., assignors to Printing Engineers Incorporated, Omaha, Nebr., acorporation of Nebraska Application February 3, 1949, Serial No. 74,324

. 1 This invention relates to the punching of apertures in materials; and more particularly it is an object of'the invention to provide a device for accurately punching apertures in predetermined positions in photographic material.

In the use of photographic reproduction machines of the type known-to the art as stepand-repeat machines, the alignment of photographic material upon the holders thereof is of great importance. 7 This is especially true in the production of multicolored printed matter.

Another object of this invention isto provide a punch box for the accurate punching of apertures on photographic material, and for use in conjunction with step-and-repeat machines of the type described in the applicants co-pending patent application, Serial No. 765,400, filed August 1, 1947 and titled Printing Apparatus, now Patent No. 2,288,385 granted March 11, 1952.

A particular object of the invention is to provide a punch, as described, which is adapted to facilitate the accurate punching of apertures without undue eye strain andwith a minimum chance forferror;

Yet another object of the invention is to pro;- vide a device for the purpose described which is sturdy and durable in construction, reliable and efficient in operation; and relatively simple and inexpensive to manufacture, assemble and utilize. I

Other and still further objects and advantages of the invention will become apparent from the following detailed description of a preferred embodiment thereof. x 1

In the drawings: v Figure 1 is a frontal elevation of the punch box of the invention, a portion of the forward wall of the lamphousing portion thereof being broken away, the punch lever frame of the device being shown in a raised position preparatory to the insertion of photographic material to be punched. a v

Figure 2 is a right hand side elevation of the device, as shown in Figure 1.

Figure 3 is a top plan 'view'of the punch box as shown in Figure 1, one of the photographic material-holding clamps being shown in a partially withdrawn position.

Figure 4 is a view-in-section of the punch box as shown in Figure '3, and as seen along. the line 44 thereof,

Figure 5 is atop plan view of a piece of film to be placed upon the deviceand punched..

Figure 6 is a view-in-section of the device taken along the line6 -6 of Figure 2 looking 1 Claim. (01. 164-91) downwardly and showing a piece of film in position upon the device preparatory to punching; and

Figure 7 is a detailed view of a punch plunger of the invention and adjacent parts, the view being taken along the line 'I--| of Figure 3.

The punching device of this invention includes a lamp box portion generally indicated at ID in Figure 1. The lamp box is of a rectangular shape on all sides excepting the ends.

The ends I2 of the box ID are preferably each provided with an upper edge inclining downwardly from the rearward side thereof to the forward side thereof. Inside the lampbox In an electric bulb I4 is mounted in a socket 16, which latter is secured to one ofthe walls of the box [0.

An electric cord 20 extends outwardly of the box I0 and is provided with two lead wires 22 which latter are connected in operation to a conventional wiring circuit. I

A switch 26 is provided extending outwardly of one end of the box It] and having a switch handle 28.

An electrical cord 30 having wires 32 interconnects the socket IB and the terminals 34 of the switch 26 in such a manner as to cause the light bulb l4 to go on and off in response to actuation of the switch handle 28.

Around the upper side of the lamp box Ill a frame 40 for a punch box glass 42 is disposed. The frame is provided with a recess 44 in its upper side for receiving the glass 42. The member 42 may be composed of ,any suitable translucent material and is provided with a fiat upper surface for receiving a piece of photographic material such as the film 4 show in Figure 5. b

The lamp box l0 also includes a light diffusing member 50 which latter is disposed between the piece'of translucent material 42 and the light bulb M. The diffusing member 50 is mounted upon a suitable bracket 52 which extends around its circumference for securing the diifusing member 50 to the inner sides of the lamp box 10.

Thebottom end ofv the lamp bo'x'is open; as:

best seen in Figure 4, a member 56:0f a rightangle in cross section being disposed about the inside of the box ID at the lower end thereof, the member 56 havin an opening-58 therethrough for purposes of ventilation.

The frame 40 extends around all sides of the piece of translucent material-42 and on two opposite'ones of the inclined sides o f-"the frame. 40 a pair of punch lever frame brackets 60 are plunger; 96."

The punch leve'rframe 66 is preferably of a rectangular shape and is secured at two corners thereof to the stub axles 64.

eration. i

The upper side of the frame 65 is-.-provided with a transversely disposed right-angle, stop or de' tent 10 which latter is disposed in parallelism wih and spaced apart from the stubaxles The detent 1B is disposed on that side of the frame 66 which is disposed upwardly at the con- I clusion of a punching operation.

The brackets 69 are each provided with a punch block Gil extending inwardly therefrom across the top of the inclined sides of the frame 40. The blocks 98 are each provided with bores extending downwardly therefrom at a right angle to the top of the frame 49 and a right angleto the translucent member 42. t e,

The said boresv are for the reception of two punch plungers 96 which latter are disposed therethrough. The punch plungers 56 are each provided with a cap 98 011 their upper ends and the latter are disposed for engagement with the under side of the punch lever framefifi at times when the latteris disposed in a punching position. A pair of coil springs Hill are provided, disposed one each upon the punch plungers 96. i

As best shown in Figure '7, the plungers 95 are eachdisposed through suitable-bores which extend downwardly through-respective bearing nuts H- The bearing nuts-HO are each provided The frame 66 is preferably provided with an open center 543 for facilitating the viewing of the device during 013- with threaded outer sides. at theirlower ends for engagingthreads H2 which latter are disposed 1 in the bores of the punch-blocks 90.

As best seen in Figure '7, the bores [i i of the punch blocks .99 are each of a size for receiving a shoulderor collar H6 which latter is secured toand spaced apart fromthe lower end of each The bore 4 1s provided-with a portion us of lesser diameter at its lower end so that the shoulders llfiare each adapted to: reciprocate between a blockshoulder thus formed and the under side of-the member I it.

:As best seen in Figure 7, the frame 43 is, provided with' two openings l3'0 extending downwardlytherethrough and, on opposite sides thereof beneath the plungers 95. The openings I35 are provided with restricted upper ends for snugly-" receiving the lower end of. the plungers 96. The openings |3fi;are also; provided with lower ends of'larger diameters for permitting the free passage therethroughof punched out uphotographic material. a V 7 :As bestnse'en. in; Figure 3, the piece of translucent material 42' is preferably provided with suitable ,indiciasuchaasa'set of cross hair lines MB thereon. .Thelines, H50 preferably extend. one in'parallelism with, and one at a right angle 130,53 line. drawn between. the lower endnof the plungers 96. w v u I The punch .box further includes a pair of pivoting clamps [50 which latter are elongated members beingsecured' at theirv centers by means of 4 bracket and extend outwardly therefrom. The members I56 provide upper surfaces disposed in parallelism with the upper surfaces of bracket 60 and in parallelism with upper surface of the frame 40 and the translucent member 42 for supporting outer ends of members I52 at times. ,Inoperation; when it is desirable to punch holes in the film 4 shown in Figure 5, the film is placed on the upper side of the translucent member shown in Figure 2.

The film A is provided with suitable reference indicia thereon, a representative indicia being illustrated by rectangular lines shown at H0 at the center of the film 4. In addition, or in substitution, the filin- 4'may be provided with crosshair indicia H4, as shown in Figure 5.

In order to properly position the film 4, the

latter is moved about so that the right angle cross-hairs I'M are disposed in alignment with the cross-hairs M0 on the translucent members M2.

If the-cross-hairs I14 are not provided on the film A, the-rectangular lines I or their equivalent, are lined up with the cross-hairs I14 for positioning the film 4. I 7

When thefilm' is in proper position the clamps I50 areswung into place for holding the film securely, such holding position of the clamps I50 being best illustrated in Figure 6.

The punch frame 66 is then lowered from the bottom thereof.

As thus described, the invention has provided a means for .accurately punching apertures in photographic material, a punching device which is time-savingand which is adapted to prevent the waste of material.

From the foregoing description it is thought toflbe obvious that a punchfor printing apparatus in accordance with our invention, is particularly well adapted to use by reason of the convenience and facility with which it may be assembled and operated, and it will also be obvious that our invention is susceptible of some change and modification without departing from the principles and spirit thereof, and for this reason we do not wish to be understood as limiting ourselves to the precise arrangement and formation of the several parts herein shown in carrying out our invention: in practice except as claimed.

We claim:

In a photcgraphicprinting film punch, the combination which comprises. a sheet of translucent material having a horizontally disposed line and a vertically disposed line thereon, said verticallydisposed line positioned at a right angle therethrough and positioned perpendicular to the lars positioned in the counterbores, means re-- siliently urging said punches upwardly away from the frame, a punch actuating frame pivotally mounted in the said brackets and positioned to engage the upper ends of said punches,

and elongated clamping members pivotally 10 mounted on the said brackets at points spaced from the said punch carrying blocks whereby film positioned on the frame, aligned with the said horizontal and vertical lines, and secured in position by the elongated clamping members is provided with accurately positioned openings upon operation of the punches.

HERMAN H. HELMER. HENRY P. ORENT.

REFERENCES CITED ,The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 749,593 Trussell Jan. 12, 1904 1,267,055 Cathcart May 21, 1918 1,580,115 Brewster Apr. 13, 1926 1,861,992 Weiner June 7, 1932 2,295,903 Kennedy Sept. 15, 1942 2,421,500

Hafi June 3, 1947

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