US415535A

US415535A - Type-writing machine

Info

Publication number: US415535A
Authority: US
Publication date: 1889-11-19
Anticipated expiration: 1906-11-19

Description

UNITED STATES PATENT OFFICE.

-GODFREY II. LASAR, OF ST. LOUIS, MISSOURI.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of Letters Patent No. 415,535, dated November 19, I889.

Application filed June 28, 1887. Renewed July 11, 1889. Serial No. 317,172. (No model.)

have invented a certain new and useful Im-v provement in Type-W'riting Machines, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, and in which Figure I is a top or plan view showing the platen and guide and part of the carriage of a typewriter, the guide being provided with my improvement. Fig. II is an end view of the carriage, including the platen and guide. Fig. III is a transverse section taken on line III III, Fig. I. Fig. IV is an enlarged detail perspective view of the upper part of the guide. Fig. V is a perspective view of one of the arms to which the upper part of the guide is secured. Fig. VI illustrates a slight modification of the guide, and Fig. VII is a detail view of the upper end of the lower part of the guide.

My present invention 'relates to the construction or form of the guide; and it consists in features of novelty hereinafter fully described, and pointed out in the claims.

Referring to the drawings, 1 represents the carriage, 2 the platen, and 3 the lower part, and 4 the upper part, of the paper guide and holder.

My invention, as stated, relates to the construction or form of this guide and holder. The lower part 3 of the guide is rigidly se cured to the carriage and extends, preferably, from the rear inwardly to a point 5. The upper part 4 of the guide is in a separate piece from the part 3, and is pivoted by screws (5 or other suitable means to the upper end of arms'7, connected by a rod 8 to the frame of the carriage. This part of the guide is preferably of the shape in transverse section shown in Fig. III and is provided with end pieces 9. Its lower portion is bulged out, as shown at 10, to receive a roller 11, having journal-pins 12, fitting in the ends 9 and slots 13 of the arms 7. The upper end 5 of the part 3 of the guide extends, preferably, slightly beyond the lower end 22 of the part 4 of the guide, so that the paper being inserted, as shown by dotted line in Fig. III, is directed toward the platen from the part 3 the paper too far for one line.

of the guide. The roller 11 bears against the platen 2, and the upper end 14 of the part 4 of the guide also bears upon the platen, and when a sheet or sheets of paper are inserted these parts hold the sheet or sheets closely against the platen, and, the part 4 being pivoted at 6 to the arms 7 and the journal of the roller fitting in the slots 22, it will be seen that the part 4 will rock on its pivot 6 to adjust itself, so that both the roller and the upper end 14 of the part 4 of the guide will always press evenly upon the paper. The part 4 of the guide is moved to and from the platen by means of a lever 15 on the shaft or rod 8, which has ratchet-and-pawl connection 16 with one end of the carriage. By means of this arrangement a broad and equal bearing is brought upon the paper to hold it firmly against the platen and conform it to the shape of the platen, so that when the types strike the paper it will not spring downwardly and rise again when the types leave it, but will be held firmly on the platen. The upper edge or end 14 of the part 4 of the guide presses upon the paper near the striking-point of the type, and this edge of the guide is graduated, as shown in Fig. I, so as to form an indicatingscale, the guide being thus used as a scale in addition to holding the paper upon the platen.

In Fig. VI I have shown a slight modification, where the upper end 5 of the part 3 of the guide is shortened and the lower end of the part 4 of the guide is extended downwardly and has a return-bend 17, which receives the paper from the part 3 of the guide and directs it behind the roller 11.

In Fig. VII I have shown the upper end of the part 3 of the guide with slots 18 to make it more flexible or yielding to the paper.

In addition to holding the paper down upon the platen, the end 14 of the guide acts as a device to control the movement of the roller to overcome the momentum of the roller in rapid work, when the roller is liable to carry The pins 12,

fitting in the slots 13, allow the part 4 of the guide to rock, but limit the rocking when the guide is thrown back from the platen, so that neither the roller 11 nor the end 14 of the guide is allowed to swing against the platen.

In another application, Serial No. 315,144,

filed March 28, 1887, I have shown and described an apron or guide for the paper having a roller bearing on the platen. Such construction I do not claim in this application.

I claim as my' invention 1. In a type-Writer, in combination with the platen, the guide formed of two parts, the upper part being pivoted to supporting-arms and provided with a roller, substantially as and for the purpose set forth.

2. In a type-writer, in combination with the platen, a guide made in two parts, pivot-e1 arms to which the upper part of the guide is pivoted, roller located in the upper part of the guide, and slot-and-pin connection beset forth.

GODFREY H. LASAR. In presence of GEO. I-I. KNIGHT, J Os. \VAHLE.