US679013A - Auxiliary spacing device for type-writing machines. - Google Patents

Description

No. 679,0l3. I Patented July 23, |901..

e. P. BLEsslue. AUXILIABY SPACING DEVICE FUR TYPE WRITING MACHINES.

(Application ledvct. 13, 1900.)

2 Sheets-Sheet l.

(No Model.)

No. 679,0I3. vPatented Iuly 23, |90l.l

G. P. BLESSING. AUXILIABY SPACING DEVICE FUR TYPE WRITING MACHINES.

(Applicqton led Oct. 13, 1900.)

(No Model.) 2 Sheets -Sheet 2,

UNITED` STATES PATENT OFFICE.

GAY F. BLEssiNG, AoF NEw MILFoRD, PENNSYLVANIA, AssicNoE. oF ONEy HALF To FRANK N. e1LLEsF1E,.oF SAME PLACE.

AUXlLlARY SPACING DEVICEFOR TYPE-WRITING MACHINES.

SPECIFICATION forming part of Letters Patent No. 679,013, dated July 23, 1901. Application filed October 13, `1900. Serial No. 32,952. (No model.)

To @ZZ whom t may concern.-

Beit known that I, GAY P. BLESSING, a citizen of the United States, and a resident of New Milford, in the county of SusquehannaJ A and State of Pennsylvania, have invented a new and Improved Auxiliary Spacing Device for Type-Writing Machines, of which the following is a full, clear, and exact description. One purpose of the invention is to provide 1o an auxiliary or corrective spacing device for type-writing machines so constructedthat the direction of the carriage of the machine may bereversed at anytime to the extent of one or more points to enable an operator to correct a misspelled word or a letter or character erroneously struck or to make an insertion.

Afurther purpose of the invention is to construct a device of the character mentioned 2o which may be adapted to any standard typewriting machine and when not in actual operation will in no manner interfere with the usual movement of the carriage.

The invention consists in the novel construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification,

3o in which similar characters of reference indicate corresponding parts in all the figures.

' Figure 1 is a perspective view of the improved device applied toa Smith-Premier machine. Fig. 2 is an enlarged front elevation of the device in inactive position, the dog being shown in dotted lines in its first active position. Fig. 3 is a partial front elevation of the device, a part being broken away, the dog being shown in its fulloperative position.

4o Fig. 4 is a plan view of the body portion of.

the improved device. Fig. 5 is a front elevation of the device, showing the manner of assembling some of its parts. Fig. 6 is a plan view of the base portion of the frame; and

Figs. 7, 8, 9, and 10 are views of parts, showing details of construction.

A represents the upper portion of the frame of a Smith-Premier machine, B the scale-bar of the machine, and C the scale. At each 5o end of the scale C a bracket 10 is secured to the upper front edge of the scale bar B. These brackets extend forward and down ward, and their lower or perpendicular members are attached in any suitable or approved manner to the ends of a rack 11, or the rack l1 may be secured to the carriage in any suitable manner. The body portion of the device consists of a frame D, comprising, preferably,a base member 12 and an upright member 13, which extends beneath the rack 11. 6o The base memberv 12 is provided with two holes 30 and 30, Figs. 5 and 6, passing from the front through to the upright member 13. These holes are made with a narrow opening E or slot at their tops 3l and 3l, and at the 65 back end of either hole is a small recess 32 and 32a. The upright member 13 is provided "with a curved slot, as shown at 33, and also a stop 34. (See Fig. 5.) The'frame D is usually secured on a plate 14, attached to the up- 7o per surface of the frame A of the type-writing machine, and the bed-plate 14 is carried to the left-hand portion of the said frame of the machine, as shown in Fig. 1. At the left` hand end of the bed-plate 14 a forwardly-ex- 75 tending lug 15 is provided, and a push-rod 16 is loosely passed through this lug.

One end of the push-'rod enters the frame D, while the other or outer end of the pushrod is provided with a suitable knob or han- 8o die 17. A-lug 1S is carried up beyond the inner end portion of the push-rod 16, which lug forms a part of a member 18, (shown in Fig. 7,) and said member also serves to pivot the end of the push-rod 16 to a lug 37, Fig. 85 8, which extends downward from the under side of a dog 26. A horizontal pin 35, Fig. 7, atV an end of the member 18, passes through a hole in the end of the rod 16,which is divided, as at 37, Fig. 4, to receive the lug 9o 37, Fig. 8. The curved lip 36 of the rod mem ber 18a (shown in Fig. 7) hooks over the pushrod 16, and the said-member 18a is held in position on the push-rod by the tension of a spring 19. It may here be remarked that the spring 19 serves three distinctpurposes, viz: to hold the rod member 13a (shown in Fig. 7) in its place on the push-rod, to return the rod, and therefore the parts pivotally connected therewith, to their normal positions at roo the ends of each operationv of the device, and to exert a downward pressure on the righthand end of an action-plate 21, to be hereinafter described. The lug 18 is connected with one end of the spring 19, which is usually a coil-spring, the outer end of the spring having an attachment to an inwardly-extending lug 2O from the left-hand upper portion,

of the action-plate 21. The action-plate 21 is pivoted near its left-hand corner by a pin 22a to the front left-hand portion of the base 12 of the frame D of the device in the following manner: The pin 22L has at its outer end a small stop 38, which when the action-plate is in a vertical position, as shown by the dotted lines in Fig. 5, will enter the slot 31 in the base member 12, allowing the pin 22' to enter the hole 30. Then when the actionplate is brought toits normal position, as in Fig. 1, the stop 38 turns in the recess 32 and holds the pin 22a and the action plate in place. The action-plateis preferably reduced in width in the direction of its inner or righthand end, and in the lower edge of the actionplate, near its inner or right-hand end, two connecting- recesses 22 and 23 are produced, as particularly shown in Fig. 2 and also in Fig. 9.

A crank-arm 24, Fig. 10, is pivoted at the front edge of the base 12 of the frame D of the device in the following manner: A member 22b on the crank-arm 24, Fig." 10, has at its outer end a small stop`38a, which when the arm 24 is in the position shown by the dotted lines in Fig. 5 will enter the slot 31 in the base member 12, allowing the lower member 22b of the arm 21 to enter the hole 30'.

'At the same time a second member 39 of the arm 24, which is made longer than the member 22h, is passed through a hole in the dog 26 and through the curved slot 33 in the upright member 13 of the frame D. Then when the arm 24C is brought to its normal position, as shown in Fig. 1, the stop 382L turns in the recess 32a'and holds the arm in place, and the end of the member 39 comes to rest in the upper end of the curved slot 33. The vertical member of the arm 24 extends out at the rear of the action-plate and is provided with a pin 25, adapted to enter the recesses 22 and 23 in the action-plate. vThe dog 26 is attached to the upperor horizontal member of the crank-arm 24, and the head of the dog, which is at its forward end, is adapted to enter any one of the spaces between the teeth of the rack 11. The dog 26 is provided with a stop 40, Fig. 8, which normally rests against the upright member of the arm 24:. The purpose of this stop is to limit the downward movement of the dog with reference to the upright member of the arm 24 and hold it in its proper position and also to transmit the proper motion to the arm 24: on the return part of the operation.

At cach operation of the device the carriage is moved back one point or the distance of that the wall of 'this recess will oersufcient Y resistance to the pin to cause the crank-arm to remain stationary until the head of the dog 26 is carried upward into the most convenient space between the teeth and the rack 11, which space should be directly over the head of the dog when the carriage of the machine is at rest. As soon as the head of the dog comes in contact with the rack 1l the arm 24 and the dog 26 will be moved to the right in consequence of the further movement of the rod 16 and the pin 25 will be forced out of the recess 22 and into the recess 23. The parts will then be in the position shown in Fig. 3, and the head of the dog will be just over the stop 34E on the upright member 13. The purpose of this stop ris to prevent the head of the dog being forced downward and the carriage being moved more than one notch by a quick or violent operation of the device. When the pressure on the handle 17 is removed, 'the first tendency of the spring 19 is to disengage the head of the dog from the tooth on the rack 11, as the wall of the recess 23 oders a resistance to the pin 25 and the arm 21 will be held back, and as soon as the dog comes back far enough to pass down by the stop 31 on the upright member 13 the action of the spring 19 will throw the head of the dog downward, entirely clear of the rack 11, before any further movement of the arm 24 takes place. However, when the stop 40, Fig. 8, on the dog comes in contact with-the upright part of the arm 24: the -pin 25 will be forced out of the recess 23 and back into the recess 22 by the tension of the spring 19.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. An auxiliary or corrective spacing device for type-writing machines, comprisinga rack adapted for attachment to the carriage of the machine, a support, a push-rod having end movement in the support, a dog mounted toswing up and down and carried by the support, the said dog being adapted for engagement with the rack, a member engaging the push-rod and pivotally connecting the dog with said push-rod, and a spring connected with said member, the said dog being raised and lowered by the end movement of said push-rod. v

2. An auxiliary or corrective spacing device for type-writing machines, consisting of a rack arranged for attachment to the scale- IOO IIO

bar of a type-writer, a support arranged for attachment to the frame of the type-writer, a spring-controlled push-rod, one end of which moves in the said support, a crank-arm pivoted in the support, a dog mounted to swing on the crank-arm and arranged for engagement with the rack, and a pivotal connection between the push-rod and the dog, as described.

3. In an auxiliary or corrective spacing device for type-writing machines, the combina-Vv tion, with a rack arranged for attachment to the scale-bar of a type-writing machine, a support arranged to be secured on the frame of the machine adjacent to the rack, and a plate pivoted on the said support and provided with connecting-recesses at its right-hand end and a spring connection at its left-hand end, of a spring-controlled push-rod held to slide in the frame of the machine, the inner end of which rod enters said support, a crank-arm pivoted on said support, a pin carried by the crank-arm and adapted to enter the recessesin said plate, a dog carried by the crank-arm and adapted for engagement with the teeth of the rack, for the purpose set forth, and a pivotal connection between the dog andthe push-rod.

4. In an auxiliary or corrective spacing device for type-writing machines, the combination, with a rack having means for attachment to the scale-,bar of the machine, a frame having means for attachment to the main frame of the machine adjacent to the rack, and a plate pivoted to the frame of the device and having connecting-recesses in its lower edge at its right-h and end, of a push-rod having guided movement on the frame of the machine, an end of which rod enters the frame of the device, a main crank-arm having one member pivoted to the frame and extending up at the rear of said plate, the other member extending horizontally across thc frame of the device, a pin carried by the upright member of the crank-arm, and adapted to enter the recesses in the said plate, a dog secured to the horizontal member of the main crank-arm and adapted for engagement with the rack, a projection from the lower portion of the dog pivotally connected with the end of the push-rod, a projection fixed to the upper portion of the inner end of the push-rod, and a spring connecting the said projection with the pivot end of the said plate, as 'described.

5. In an auxiliary or corrective spacing device for type-Writing machines, the combination, with a rack having means for attachment to the carriage of the machine, a frame having means for attachment to the main frame of the machine and having an upright member, a plate pivoted to the frame of the device in the manner described, a push-rod having guided movement in the frame of the machine, a main crank-arm pivoted to the frame in the manner described, and consisting of an upright member and two horizontal members, the upper one being the longer and passing through a curved opening in the back of the frame of the device, a dog secured to the upper horizontal member of the main crank-arm and having a projection on its outer side normally in contact with the upright member of the main crank-arm, said dog being connected with the push-rod in the manner described, and a pin or stop secured on the upright member of the frame of the device to hold the dog firmly in position at the end of the forward movement of the dog at each operation of the device.

6. An auxiliary or corrective spacing device for type-Writing machines, comprising a rack adapted for attachment to the carriage of the machine, a frame for attachment to the machine-frame, an arm pivoted to said frame, a dog pivoted to 'said arm to swing up and down and adapted for engagement with the rack, and a spring-controlled push-rod pivotally connected with said dog, substantially as set forth.

7. An auxiliary or corrective spacing device for type-writing machines, comprising a rack adapted for attachment to the carriage of the machine, a frame, a spring-controlled push-rod having end movement in the frame, a pivoted arm carried by the frame, a dog pivoted to said arm and adapted for engagement with the rack the said dog being provided with a projection normally in contact 'ith the pivoted arm, and an operative connection between the push-rod and the said dog, substantially as set forth.

S. An auxiliary or corrective spacing device for type-writing machines, comprising a rack adapted for attachment to the carriage of the machine, a frame for attachment to the frame of the machine, a crank-arm pivoted to the frame, a dog arranged for engagement with the rack and carried by the crankarm, a plate pivoted to-the said frame and controlling the movement of the said crankarm, a push-rod for actuating the dog, and a spring controlling the said plate and also controlling the push-rod, as set forth.

9. An auxiliary or corrective spacing device for type-writing machines, comprising a rack adapted for attachment to the carriage of the machine, a frame for attachment to the frame of the machine, and having a base member and an upright member arranged to extend beneath the rack, the said upright member being provided with a curved slot and a stop, a dog for engagement with the rack, a crank-arm pivoted to the base member of the frame and having a member extending through a hole in the dog and through the curved slot in the upright member of the frame, and a spring-controlled push-rod conected with the dog, substantially as speci- 10. An auxiliary or corrective spacing device for type-writing machines, comprising a frame for attachment to the machine-frame,

IOO

IIO

IIS

Y mechanism carried by the frame of the del name to this specication in the presence of f Vice and adapted when actuated to engage two subscribing Wilgnesses.

and move the carriage of the machine, means v for actuating said mechanism, and a pivoted l GAY P' BLEbSING 5 and spring-controlled action-plate for con- Wibuesses: v y

trolling the movement of said mechanism. FRANK M. BUTTERFIELD,

In testimony-whereof I have signed my1 E. D. BARTHOLF.

Images