US761954A

US761954A - Gage-frame.

Info

Publication number: US761954A
Application number: US20309304A
Authority: US
Inventors: Frank J Gebhardt
Original assignee: Individual
Current assignee: Individual
Priority date: 1904-04-14
Filing date: 1904-04-14
Publication date: 1904-06-07
Anticipated expiration: 1921-06-07

Description

N0 MODEL.

PATENTED JUNE 7, 1904. F. J; GEBHARDT. H

GAGE FRAME. APPLICATION rnn n APR. 14, 1904.-

TN! uoams PETERS co. PNCITO-LIYND. wnsmua'rou. n.

r 6 is an enlarged end view showing the ratchet Patented June 7, 1904. i

PATENT OFFICE.

ERANK' J. GEBHARDT, or CLEVELAND, OHIO.

GAGE-FRAME.

SPECIFICATION forming part of Letters Patent No. 761,954, dated. June 1904.

Application filed April 14, 1904.

T0 (LZZ whom, it may concern:

Be it known that I, FRANK J. GEBI-IARDT, a citizen of the United States, and a resident of Cleveland, county of Cuyahoga, State of Ohio,

. have invented certain new and useful Improvements in Gage-Frames, of which I hereby declare the following to beafull, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same. I

This invention relates to improvements in gage-frames for cutting cloth strips of predetermined width used in connection with any suitable cutting-tool; and the objects of the invention are to provide a device for this purpose whereby speed and accuracy of work can be obtained and. unvarying certainty in the straightness of the work and width of the rc- I sulting strips.

The invention consists in the rectangular frame over which the cloth to be out is laid, a movable transverse bar which serves for a guide to the cutting-tool, and in the adjusting mechanism therefor by means of which the bar is advanced to provide for the cutting of each successive strip from the cloth and returned thereon, and in the various details of construction, as hereinafter described, shown in the accompanying drawings, and specifically pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan view of the completc'device, portions of the frame being broken away tov reduce the size of the figure. Fig. 2 is an enlarged plan View of one corner of the frame, showing the movements of the mechanism of one side for advancing the bar. Fig. 3 is a side view of the same mechanism. Fig. 4 is a plan view of one corner of the other side. Fig. 5 is an enlarged side View of the ratchet device. Fig.

device mounted upon the end of the transverse bar and the side bar and guide-rod in trans verse section. Fig. 7 is a perspective view of the ratch ets.

In the views, 1 is a rigid four-sided frame of flat bars secured together or integral. Upon this frame on either side are mounted the

rods

2 and 31, which are secured rigidly 1n supports 3 at either end. On one side a plate 4, conwidth.

$eria1No. 203,093. (No model) nected to the transverse gage-bar 5, is mounted upon the side of the frame 1 and is guided thereon by the depending flanges 6. Upon this plate is secured the vertical stop posts 7, through openings in which the rod 2 passes. It is by means of this rod and accessory mechanism that the gage-bar is manipulated in the following manner:

Upon the plate 4 is placed a graduated scale Sin divisions of space, such as an inch and fractions thereof, and a plate 9, provided with a stop edge 10 at right angles to the adjacent rod 2 and with a pointer 11, is adjustably secured to the plate 4 by means of a slot 12 and screw 13. At the outer limit of the scale is placed the clamping-lever 14, which is provided with an opening 15, which loosely encircles the rod 2. This lever is prevented from moving farther outward along the rod by the second stop-post 7, against which it abuts, and a spring 16 on the rod normally holds it in its position. A solid block 17, secured to the plate 4, is placed at the inner limit of the scale and serves as a guide for the pointer-plate and also serves to move the entire plate forward when grasped, together with the free end of the lever 14. This is accomplished as follows: The pointer being set to give the width of cloth strip desired, the lever extremity and block 17 are grasped, and since the lever will instantly grip. tightly the rod the plate 4 will move forward until the edge 10 comes into contact with the I I edge of the*lever.14.- This act is only performed at one side of the frame, and the plate 4 is brought forward, thus bringing with it the gage-bar 5, against which the cutting tool is guided. As soon as the lever and edge 10 coincide the lever is. released and the spring 16 immediately throws out the lever 14 again until it strikes the second stop-post 7. This act is repeated again and again, a strip being out every time and all strips of perfectly even To expedite the cutting, the cloth in as many thicknesses as desired is simply laid over the frame, as seen in dotted lines in Fig. 1, and each cut made by a tool, such as the circular cutters now in use, which moves along the gage-bar 5. The transverse dotted lines show the width of the strips as they are consecutively cut from the cloth, the bar 5 moving up each time an equal space by the scale. As the plate I moves up the guides, carrying the gage-bar 5 with it, it is prevented from slipping back by means of the ring-shaped latch 20, which encircles the rod and has its lower edge set in the recess 21 in the upper surface of the plate. The upper end of this latch is normally moved forward by means of spring 22 on the rod, so the latch will grip the rod and prevent any backward movement. When, however, it is desired to move back the bar 5, the latch is placed in the vertical position, so as to release the red, when the plate 4: and bar are free to move. This is done by means of the cam 23, pivoted on the support 24 on the plate, Which frees the latch until it is desired to move the bar back again. These movements to push the plates and bar forward and to release the ring-latch are easily made, the plate being adjusted by one hand. In the meantime the other end of the bar 5 moves simultaneously with the end just described and to maintain its progress exactly commensurate with the other end a ratchet device is employed similar to that shown in the detail in Figs. 5, 6, and 7. Here 30 is a vertical plate secured to the end of the bar 5 just outside of a fiat rod 31, corresponding to the rod 2 on the other side of the frame 1, underneath which the bar 5 passes. Upon this plate are pivoted the

pawls

32 and 33, which engage a sawtooth raek 34 upon the side of the frame and prevent any backward movement, while permitting perfectly free forward movement. When it is required to push back the bar 5 to the starting-point, the pawls must be simultaneously released from the rack, which is accomplished by means of the vertically-moving block 35, which is saddled over the plate 30 and is pressed down upon the rearward extensions 36 upon the pawls by means of a lever 37, which is pivoted upon a vertical extension of the plate 30, thus raising both pawls from engagement with the rack. When raised, a spring-pin 38, entering a hole 39 in the lever 37, keeps the pawls out of engagement with the rack until it is desired to start again. A spring LO raises the plate or block 35 when released by the lever. 41 is a guide for the block 35. A stop-pin 4L2 prevents the lever from rising too high.

The advantages of the ratchet device are great, since with this addition it is unnecessary to duplicate the moving device shown on the other side of the frame. In operation the pawls move along the fine surface of the rack as fast as the bar is moved forward and prevent any backward movement until they are raised. Again, it would be very diificult to operate simultaneously the releasing-catches of the moving device if duplicated on both sides of the frame, especially if the frame were very broad, since it would be hard to reach far enough to operate one with each hand.

Having described my invention, what l claim as new, and desire to secure by Letters Patent, is-

1. In combination with the four-sided frame between the sides of which the cloth is laid, a transverse bar adapted to serve as a guide for the cloth-cutting device, means for guiding the same on one side bar of the frame, for advancing the same a succession of times through a predetermined equal space each time, and means for locking the bar on the forward movement on that side to prevent the backward slip while the cloth is being cut, means for releasing the same to draw back the bar when the limit of the forward movement has been reached, and a rack on the other side of the frame, and ratchet device upon that end of the bar, substantially as described.

2. In a device for the purpose described, a four-sided frame, a plate mounted slidingly upon one side bar of the frame, a trai'isverse bar connected with the plate, a scale on said plate, a finger-operated clamping device. to move such plate through a predetermined space on the scale, means for releasing said clamping device, a latch adapted to normally prevent the return of said plate and connecting-bar, and a rack on the other side of the frame, and ratchet device on the other end of the bar, substantially as described.

3. In a device for the purpose described, a four-sided frame, between the sides of which the cloth is laid, a transverse gage-bar, a plate secured to one end thereof mounted upon the side bar of the frame, and free to slide longitudinally thereon, a longitudinal guide-rod secured upon one of said side bars at the outer ends thereof and passing over said plate and end of the transverse bar, blocks upon said plate through which said guide-rod passes, a scale upon the plate, an adjustable stop-plate adjacent to the scale, a clamping-lever upon the rod, loosely engaging the rod, and a. spring upon the rod engaging the lever thereon, and means for preventing the irregular movement of the other end of the bar.

4. In a device for the purpose described, a four-sided frame, between the sides of which the cloth is laid, a transverse bar, a guideplate for one end of the bar adapted to move longitudinally of one side bar of the frame, a rod mounted on the ends of the side bar and passing over said side bar and guide-plate, a clamping-lever upon the guide-plate, a gradir ated scale adjacent to the stop-plate, a spring on the rod, a stop on the guide-plate engaged by one end of said spring, the other end of which engages the lever, and a stop on the guide-plate engaging the lever and limiting its forward movement, substantially as described.

5. In a device for the purpose described, a four-sided frame, a transverse bar mom'ited in longitudinal guides on the side bars of the frame, a rod mounted longitudil'lally on one side bar of the frame, and passing over said transverse bar and guide, a stop-plate and graduated scale on the guide, a gripping detransverse bar from backwardmovement, sub- I stantially as described.

In testimony whereof I hereunto set my hand this 26th day of March, 190

FRANK J GEBHARDT.

Witnesses:

WM. M. MONROE, GEO. S. COLE.