8, 1946.v c. w. BURCKY ‘ ' 2,409,102 _ eummé mans ' Fil'ed Jan. 29,1945 FIG. 2 INVENTOR CHARLES w. suRcKY “ 517 [W ATTORNEY Patented Oct. 8, 1946 UNITED STATES PATENT OFFICE 2,409,102 GUIDING MEANS Charles W. Burcky, Park Ridge, 111., assignor to Teletype Corporation, Chicago, 111., a corpora tion of Delaware Application January 29, 1945, Serial No. 575,131 3 Claims. (Cl. 197—133) 1 , 2 balls H are disposed between the carriage H and This invention pertains to printing apparatus the rails l4 and I5, and provide free movement and more particularly to paper controlling in of the carriage with respect to its supporting rails. strumentalities therefor. As is well known, the rotatable platen I2 is pro The principal object of the present invention vided with a feed ratchet (not shown) with which is to prOVide in a recording machine, features there cooperates a feed pawl (not shown) for which are conducive to reliable and efficient op- . advancing the paper. eration. As shown in the aforementioned patent, car Another object of the invention is to provide riage H supports an arcuate paper guiding plate means for maintaining the sides of a paper chute in proper alignment with respect to the normal 10 (not shown) which extends around the lower portion of the platen l2 and conforms to the con path of the web of paper to preclude a binding tour thereof. The arcuate plate is provided with action from developing between the paper and bearing members in which are supported a shaft the sides of the chute, and to insure that the 18. The shaft i8 has mounted thereon pressure web approaches the platen in proper alignment. rollers It (only one of which is shown) and the The present invention features novel con arcuate paper guiding plate is provided with apertures in registry with the pressure rolls 19 to permit the rolls to frictionally engage the trolling devices which facilitate the handling and disposal of record material for printing ma chines. Brie?y, the printer to which the device platen when no paper is inserted in the carriage, is adapted to print upon page width paper which 20 and to frictionally engage paper upon which according to the present invention, is applicable characters are to be printed. may be in the form of av continuous web. The invention contemplates a page printer having a ' paper guide plate provided with paper retaining means, said plate having spaced tongues on the foremost edge thereof which are adapted to co ' The end plates I3 are provided with means for supporting a paper tear-off blade 2| and a paper guiding plate 22. Blade 2| and plate 22 are 25 spaced apart a predetermined distance, whereby there is provided a space through which may be guided paper passing upwardly from the platen printer frame, and spring hold-down means for after having been fed between the platen l2 and said plate, said spring means comprising a pair the arcuate guide plate that carries pressure roll of flat springs pivotally mounted on the printer frame and adapted to cooperate with a pair of 30 ers IS. The lower edge of the guide plate 22 is disposed in close proximity to the platen l2, and projections on said plate to hold down the plate the plate functions after the manner of a stripper and at the same time to be conveniently pivoted to guide the paper away from the platen. Suit away from the edges of said plate to render said able guide ?ngers (not shown) are mounted on plate readily removable. The foregoing objects and features of the in 35 tear-off blade 2|, the ?ngers of which extend downwardly and overlap the arcuate plate so that vention will appear from the following detailed paper emerging from between the platen and ar description taken in conjunction with the accom cuate plate is guided to the passage or space be panying drawing, in which tween tear-oif blade 2| and guide'plate 22. Fig. 1 is a perspective view of the platen car As indicated above, it may be desired to supply riage showing particularly the paper chute and operate with corresponding slots provided in the retaining means therefor, and Fig. 2 is a vertical sectional view through the platen carriage, taken approximately on line 2-2 of Fig. 1, showing the manner of mounting the device according to the invention. Having reference to the drawing, the platen carriage mechanism to which the paper guiding and controlling instrumentalities of the present invention are applicable is indicated generally as H, and is of the type shown in U. S. Patent 2,296,874, granted September 29, 1942, to A. H. Reiber. A platen I2 is rotatably mounted in end plates l3 of carriage H. The carriage H is sup ported on rails l4 and I5 at the top of the main frame member [6 of the printer. Anti-friction 55 paper in the form of a web which is not sup ported on the carriage but which is stationarily mounted upon any suitable support behind the carriage. To achieve this result, the present in vention provides a guide member and means for supporting said guide member. The carriage H has secured thereto and extending across the rear thereof a convexly formed plate 23 in which are formed spaced slots 24 near the rearmost edge thereof. A guide plate 25 is provided at the fore most edge thereof with tongues 25 which are spaced apart a distance equal to the spacing of ‘the slots 24 in the convex plate 23, each tongue being offset as shown in Fig. 2. The guide plate or paper chute 25 is provided 2,409,102 ' 3 4 along its ends with paper guiding and retaining means, comprising retaining members 28 se cured to the plate 25 by bolts 29. Also adapted from said apron, a pair of ?at spring hold-down clamps pivotally attached to said carriage, one adjacent each edge of said chute, cooperating lugs on said chute, whereby said clamps are adapted to be superimposed upon said lugs to to be secured by bolts 29 are a pair of bars 3|, one at each end of plate 25 and each provided with a sidewardly extending lug 32. Secured to the carriage I! adjacent the sides of the plate 25 are a pair of brackets 33. retain said chute and to be swung clear of said lugs to render said chute readily detachable, and means on said chute coactive with the extremi A spring hold-down clamp 34 is pivotally connected to each bracket 33 in such a manner that the free end of each spring is adapted to cooperate with the lug or ties of said clamps to obviate disalignment of said chute with respect to the paper. 2. In a recorder, a stationary frame, a platen carriage supported upon said frame, a convex apron, at the rear of said carriage comprising a projection 32 extending sidewardly from the bars 3|. The lugs or projections 32 are further pro vided with vertical ?anges 21 which cooperate with the ends of the respective springs 34, the downwardly and rearwardly directed portion, said sition 35 preparatory to detachment, and the downwardly and rearwardly directed portion, said 15 apron having apertures in said portion, a paper purpose of which is to obviate the possibility of guiding chute having projections insertable into plate 25 being accidentally dislodged or dislo said apertures for supporting said chute to extend cated by being struck on the bottom edge thereof. said chute obliquely downwardly from said apron, Accordingly, slotted holes are provided in bars resilient instrumentalities pivotally attached to SI for bolts 129 so that, with bolts 25 loosened 20 said carriage, one adjacent to each edge of said and springs 34 in their operative (solid line) po chute, cooperating elements on said chute, where sition, bars 3i are held with their ?anges tightly by said instrumentalities are adapted to be super against the free ends of springs 34, and plate 25 imposed upon said elements to retain said chute is urged in the opposite direction to bring tongues 26 against the lower edges of their slots 24, where 25 and to be pivoted clear of said elements to render said chute readily detachable, and means on said 'by, when bolts 29 are tightened, plate 25 will be cooperating elements coactive with the extremi held securely against dislocation. With this con ties of said resilient; instrumentalities to obviate struction the spring clamps 3:‘! are adapted to be disalignment of said chute with respect to the swung toward’ and away from their associated lugs 32 to permit the ready removal of the chute 30 paper. 3. In a recorder, a stationary frame, a platen 25. In Fig. 1 the released position of spring 34 carriage supported upon said frame, a convex is illustrated by the dotted position 31. apron at the rear of said carriage comprising a In Fig. 2 the chute 25 is shown in a dotted po spring clamp 34 is shown dotted in its un?exed position 36. Fig. 2 also shows spring 34 in its ?exed position. Although a particular embodiment of the in vention has been described herein, it will be un derstood that all modi?cations are contemplated which come within the spirit and scope of the apron having apertures in said portion, a paper guiding chute having projections insertable into said apertures for supporting said chute to ex tend said chute obliquely downwardly from said apron, resilient instrumentalities pivotally at 41) tached to said carriage, one adjacent to each edge of said chute, elements on said chute co operative With said instrumentalities whereby appended claims. said instrumentalities are adapted to be super What is claimed is: imposed upon said elements to retain said chute 1. In a printing apparatus, a stationary frame, a platen carriage movable upon said frame for 45 and to be pivoted clear of said elements to render said chute readily detachable, said elements hav character spacing, a convex apron at the rear ing adjusting facilities, and means integral with of said carriage having a set of slots near the said elements and effective in cooperation with rearmost edge thereof, a paper guiding chute said adjusting facilities and said apertures to having ears insertable into said slots for support secure said paper chute against dislocation. 50 ing said‘ chute to extend obliquely downwardly CHARLES W. BUR/CKY.