US980879A - Interchangeable platen for type-writers. - Google Patents

Description

D. P. MOORE. INTEROHANGBABIIEPLATEN POR TYPE WRITERS.

' APPLICATION {1mm 13.12.30} 1909. 989,879, Patented Jan.3,1911.

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APPLICATION rmm MAR. 30, 1909.

v Patentd Jan, 3, 1911.

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APPLICATION FILED MAR. 30, 1909.

Patented Jan. 3, 1911.

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980,879. Patented Jam-8,1911.

IVII L'VESSES IN VENT OR UNITED STATES PATENT OFFICE.

DAVID PELTON MOORE, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOB TO 7 UNION TYPEWRITER COMPANY, OF IIlION, NEW YORK, A CORPORATION OF NEW YORK.

INTERCHANGEABLE PLATEN FOB TYPE-WRITERS.

Specification of Letters Patent.

Patented Jan. 3, 1911.

;To all whom it may concern:

Be it known that 1, DAVID PELTON Moonn, a citizen of the United States, residing at Washington, in the District of Columbia, have invented certain new and ua ful Improvements in Interchangeable Platens for 'Type-Vriters, of which the following specification, reference being had thereinv to the accompanying drawing. My present invention relates to an 'im-. proved interchangeable platen for typewriters, the particular invention making it possible to quickly, interchange a rotatable \platen with a platen capable only of two 15 movements toward and away from type presentation position and .vice versa, t e said last mentioned platen being adapted for use as a laundry marking or card printing platen. In applying said invention to a typewriting machine such as-the Remington No. 10, or in fact any type of visible machine, I discovered that to make the invention practical, the tilting platen must be interchangeable with the 'ordinar platen, as now used; and this particular construction is the outcome of ex' eriments to accomplish this result, it being. emonstrated in practice that the change from the writing platen to the tilting platen or vice versa, can be accomplished byunskilled persons in less than one minute. In this instance, I provide a segmental platen. having aforward or oscillating move and rearward tilting ment, and a clamplng device operated" to clam the article to the platen upon the. forwar movement, and to release 'upon the rearward movement-of the. laten. I To clearly set forth the eatures of interchangeability of the platens, attention is ,invited to which Figure 1 is a top plan view of a typewriting machine with the platen removed. Fig.

2 15 a side elevation of the carriage with the ordinary writing platen in position, one of the knobs being removed. Fig. 3 1s a 51mllar view with the marking platen in position. Figs. 4,5 and 6 are detail views of they removable boxes of the writing platen. Fig. 7 is a top plan view of the marking platen with a cufi" in marking position, said cuff bein in dotted lines. Figs. 8, 9- and' 10, are detai views of the left-hand removable box of the marking platen. Fig. 11 is a cross seiztion through said platen illustrating the is athereof.

writing the accompanying drawings, in-

- operation of the clamp, and F i 12 is a detail perspective of the ide pate, its su port and the guard r F i 13 is a si e elevation of. the writing p at'en removed with thespacing'lever in o erative position. Fig. 14 is a top plan uiew t ereof, the platen being broken away to shorten the same, and Fig. 15 is a bottom plan view of one end Referring to the drawin s:-The numeral 1 designates the frame of t e machine, and 2 the transverse rod operated upon by the shifting mechanism. The carriage 4' is mounted to travel transversely in both directions, and is provided with the enlargements 5, which dependfrom the sides 6, of the carria e and are provided with the alined soc ets or receptacles 7, for the removable reception ofthewriting platens removable boxes 8 or the marking platens removable boxes 9. To the rear of these en ar ements and :upon the upper portion of t e carriage, provide the cleats 10, while upon the opposite side of the enlar ements, I provide the adjustable and sli ably mounted clamps 11, the purpose of which will presently appear. I

By re erring to Figs. 4 and 5, it will be seen that each ofthe removable boxes 8, com sists of thesupport12, whose rear end is provided with thehook '13, which'removably enga es'one of the cleats 10, while the forward en 14; is reduced to fit between the reduced end of a clampll and the upper face" of the cleat' 10- and clamp ll',the boxes 8 are removably mounted within the carriage. To insure the proper shift movement of the platen within the carriage, the'support 12 has depending therefrom and carried thereby, the elliptical frame 15, provided with the elliptical opening 16, in which the shaft 17 of theplaten is allowed a rise and fall, to shift the platen, the adjustable stop 17 carried by the support 12 limitin the 'u 'ward movement of the platen,wh1l e the a justable stop ing through the aperture 19 for'me in the lower portion of the frame 15, limits the downward movement of the platen. Also carried by the support and pro ecting downwardly upon the inner rear side thereof, is the arm or plate 20, in whose lower end. is journaled as at 21, the angled end 22, of the I platenguiding rod 23, whichis journaled by carriage frame, and that by means of this 18 carried by the enlargement 5, and project- 1 means of the lugs or arms 23 to the frame 24 of the platen, the short levers 23, being piv otedto the boxes also, and thereby allows the complete Writing platen to be removed from 5 the carriage when the boxes 8 are removed.

y In order to complete the removability of the writing platen and its'frame, the rod 25 of the spacing mechanism 26, is detachably connected as at 27 to the'operating lever 28.

This much constitutes the writing platen mechanism, and it will be seen that to remove the same from the carriage frame, it is simply necessary to detach the rod 25, release the clamps 11, and raise the platen by the knobs, iving the supports or boxes 8 a slight rear ti ting movement.

The marking attachment, which it is now desired to install, is provided with the boxes 9, asclearly shown in Figs. 8, 9 and 10, and each consists primarily of the support 29, having the rear hook 30. These hooks removably engage the cleats 10 of the frame, while the forward ends 31- are engaged by 1 the clamps 11 Carried by these supports 29 and adapted to fit snugly within the sockets of theenlargements 5, are the lugs '32, and formed in these lugs are openings 33,- whose walls'constitute bearings for the shaft 35, of the platen 35, which is preferried upon both ends of the shaft 35, are the operating handles while uponone end. between the handle and the boxing is keyed the retarding-ratchet wheel 36, which is engaged by the spring detent or pawl 37 L carried by the boxing. Upon-the underside j: .of each lug is provided the socket 38, which fits over and receives one of the lower adjusting stops 1.8, when the lugs are fitted and held within the sockets of the enlarge ments 5. The marking platen is not connected with the case sh fting mechanism, as it is only desired to present the upper case, or capitals and numbers, to the material to be marked, and therefore the shaft remains in the samerelative posit-ion to its boxings and the carriage. Upon the inner faces of I the boxings 9', I adjustably attach the disks 39, which are provided with the cam slots 40, in which fit and .slide the terminals of the. studs or pins 41, which project from and are carried by the arms 42. These arms 42 are provided with the elongated openings 43, which slidably fit upon the shaft 35 next to the platen supporting plates 44, and carried by these arms and also opposing the flat face 45 of the platen, is the clamping plate 46, which is also slidably connected to said face 45 by means of the screw and slot connection 47. By this means it will :be seen that as the platen is tilted fearwai dly, the pins 41 moving in the cam slots 40, will cause the arms 42 to move outwardly and thus cause the clamping plate to slide in the same direction, so that its ably made segmental in cross section. Carseams clamping right-angled lip 46 will move 7 away from the platen and thereby provide a receptacle for the article to be marked. After the article is inserted in said receptacle, the platen is moved forwardly, the cam slots 40 operating upon said pins 41 to move the v marking various thicknesses or plies of articles, if made by using' a base or layer of sponge rubber 49, carrying an outer face of hard or vulcanized rubber 50. By this means the sponge rubber can be depressed, and deadens or reduces the noise of striking type, While the rubber 50, offers a good writing support for either stiff or soft ma terials, an thus insures even printing.

As shown in Fig. 12, I provide the brackets 51, each one of which has the short forward arm 52 and the long rearward arm 53, the short arms being connected together by means of the guard rod 54, which assists in holding the article to be marked when still", snugly against the platen so as tojinsure an even impression ofthe type. The long arms are connected together by means of the rod 55, to which is removably connected the material uide plate 56. These brackets are removalily secured to and carried by the boxing 9, by means of the set screws 57 which fit in the threaded sockets 58, of the boxings 9. y

lVhat I claim, as new, is

1. The combination with a platen, and its shaft, capable of a tilting or rotary movement, of boxings carried upon the shaft and. removable therewith, a clamping plate carried by the platen, and co-actlng means between the boxings and plate for operating the clamping plate when the platen is tilted or oscillated.

The 'combination with --a typewriting machine, of a platen support, of aplaten capable of two movements to and from type presentation position, means for clamping an article to the platen as the platen is moved toward type presentation position and to release the same when moved in the opposite direction, and a frame connected with the platen support and provided with an article guide and with a guard to engage the article as the platen is moved toward type receiving position, as shown and described.

3. The combination with a typewriting "also carried by the platen, a boxing carried by'the shaft at each end of the platen, and co-acting means between the carriage and boxings for removably locking the boxings to the carriage.

4. The combination with a typew'riting machine, and a carriage, of a platen, a shaft also carried bythe platen, a boxin carried by. the shaft at each end of the p aten, coact-ing means between the carriage and boxings for removably locking-the boxings to the carriage, a clamping device slidably mounted upon the shaft at the end of the platen and capable-of two movements to and away from the surface of the platen, and coacting means carried by the clamping device and the boxings for operating the clamping device as the platen is moved.

5. The combination with a 'typewriting machine, and a carriage,"of a laten, a cushioned elastic surface carried thereby, a shaft also carried by the platen and projecting beyond the ends thereof, a boxing, carried upon said shaft at each end of the platen and in which said shaft may rotate, co-acting means carried by the carriage and boxings for removably locking the boxings to the carriage, a clampin device slidably mounted upon the shaft etween the platen and the boxings and having its clamping portion opposed to the platen, and co-acting means carried by the clamping device and the boxings for operating the clam ing device to clamp articles upon the p aten or release the same.

6. The combination with a typewriting machine, and a carriage, of a platen, a shaft carried thereby and projecting beyond the ends thereof, a boxing carried upon said shaft beyond the ends of the laten, means to manually rotate said shaft and platen, co-acting means carried by the boxings and carriage for removably looking the boxings to the carriage, a clamping device slidably mounted'upon the shaft between the ends of the platen and the boxings and having its clamping portion 0pposed to the face of the platen, and co-acting means carried by the clamping device and the boxings for limiting the oscillating movement of the shaft and platen and for operating the clamping device.

7. The combination with a typewriting machine, and a carriage capable of transverse movement, of a platen, a shaft carrying the platen, a boxing carried near each end of the shaft and exterior of the latch, and in which said platen is capable of rotating, and co-acting means carried by the carriage and boxings for removably locking the boxings to the carriage. i

8, The combination with a typewriting machine, and a carriage ca able of transverse movements and provi ed with alined sockets,'of a shaft, a platen carried by the shaft, a boxing for journaling each end of the'shaft and adapted to removably fit in the sockets of the carriage, means for locking theboxings to the carriage, and means for rotatingthe shaft and laten.

9. The combination wit a typewriting machine, of a platen, the body portion of which is segmental in cross-section, an article receiving surface carried upon the curved surface of the body portion, a shaft carrying the platen, a pair of arms slidably mounted upon the shaft, a clamping plate having an upturned edge slidably mounted upon the lower fiat surface of the platen and connected to said arms, journal boxings for the shaft, and co-acting means between rying said platen, means for securing the' shaft in the carriage, a clamping device slidably mounted upon the shaft and having its clamping portion opposed to the cushioned surface of the platen and capable of two movements to and from said surface, the inward movement of the clamping device toward the surface at all times being the same, whereby the various thickness of articles to be marked will cause the cushioned surface to depress. and allow the surface of the article to receive the type to at all times be in the same type presentation plane, means for operating the platen, and a single means for operating the clamping device and limiting the movements of the platen.

In testimony whereof I afiix my signature in presence of two witnesses.

' DAVID PELTON MOORE. Witnesses:

GUY M. SPRING. A. M. PARKINS.

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