US2690308A - Cloth winding machine having selective speed control means - Google Patents

Description

' P 28, 1954 H. w. GILBERT ET AL ,6 3

CLOTH WINDING MACHINE HAVING SELECTIVE SPEED CONTROL MEANS Filed May 18, 1949 5 Sheets-Sheet l INVENTOR FIG. 8. I HERMAN WALTER GILBER WALTER DEICHMANNY 5/7/ 505 y 512 525 ATTORNEY Sept. 28, 1954 w, G|LBERT ET AL 2,690,308

CLOTH WINDING MACHINE HAVING SELECTIVE SPEED CONTROL MEANS Filed May 18, 1949 5 Sheets-Sheet 3 J'Nl-ENTORJ HERMAN WALTER GILBERT VLVQLTER DEICHMANN ATTORNEY Sept. 28, 1954 w, G|| BERT ET AL 2,690,308

CLOTH WINDING MACHINE HAVING SELECTIVE SPEED CONTROL MEANS Filed May 18, 1949 5 Sheets-Sheet 4 INVENTORS HERMAN WALTER GILBERT WALTER DEICHMANN AT TORN EY Sept. 28, 1954 H. w. GILBERT ET AL 2,690,308

CLOTH WINDING MACHINE HAVING SELECTIVE SPEED CONTROL MEANS Filed May 18, 1949 5 Sheets-Sheet 5 INVENTOR. HERMAN WALTER GILBERT W A LTER DEICHMANN ATTORNEY Patented Sept. 28, 1954 UNITED STATES PATENT OFFICE CLOTH WINDING MACHINE'HAVIN G SELEC-. TIVE SPEED CONTROL MEANS of New York Application May 18, 1949, Serial No'.-93,-896

2 Claims.

This invention relates to machines for measuradapted to facilitate the simultaneous inspection of the cloth being measured, during the measuring process.

A further object of the invention :is to provide an, improved cloth measuring and inspecting A machine, which is adapted to receive any size of cloth roll or bolt, being adjustable for the size or length of any roll or bolt to be measured therein, and in which novel means are provided for quickly and easily releasing said cloth roll or bolt for demounting the same from the machine.

Another object of the invention is to provide an improved cloth measuring and inspecting machine including a selection of variable speeds controlled by means of a convenient foot pedal, to increase and decrease the speed, and also to run the machine forwardly or in reverse.

Another object of the invention is to provide eye level inspection, so that the worker cansit at the machine, if desired, for comfortable inspection of the piece goods, the controls being simple and easily reached.

.Still another object of the invention is to provide a clothmeasuring and inspecting: machine including a front inspection board across which the cloth travels and is prevented from sagging during the inspection process, and also including an easily attachable and. detachable rear inspection rack across which the cloth passes in a vertical planefor convenient inspection in this plane from the rear of the machine.

A further object of the invention is to provide an improved cloth measuring and inspecting machine which is simple in design, inexpensive to manufacture, and which is easyv to operateby relatively inexperienced workers with a high degree of accuracy and speed.

Other objects and advantages of the invention will become apparent from the following. description of a preferred embodiment, thereof as illustrated in the accompanying drawings, and in which:

Fig. 1 is a side elevation of the machine:

Fig. 2 is a front elevational view of the ma,- chine shown in Fig- 1, that is, as ,seen from the left-of Fig. 1,

Fig. 3 is a sectional side .elevational view of the machine as seenon lane 3-4 of Fig. 2,

Fig; 4 is a fragmentary. plan, view in detail takenon line 4-4 of Fig. 2,

, Fig. 5 is a sectional elevation of the gear box and ears and shaflzs therein.

Fig. 6 is a sectional. elevation taken on plane 6-.6 of Fig; 5,

Fig. 7 is a side elevational viewsimilar to that of Fig. 3, but showing a modified form .of the invention, by means of which the machine is provided with-both a frontinclined inspection board anda rear-ward inspection rack for inspecting the cloth from the rear of the machine in a vertical plane,

Fig. 8 is a schematicvwiring diagram illustrating the operation .of a foot control switch for the motor;

Fig. 9 is a schematic showing of a portion of the apparatus shown, in Fig. 3 and illustrating a modified or alternateuse thereof; and

Fig. 10 is a top plan view of a portion of the apparatus shown in Fig. 3 and .illustrating a modified form of the invention.

In the use and. operation of ,cloth measuring and inspecting machines, it is necessary that this be quite convenientto the operator, since it is a delicate operationrequiring concentration of the operator on, the work at hand, namely that of measuring the length of the cloth on the roll or bolt, and also thatv of inspecting the cloth during the measuring operation, for. defects. The machine should be readily. and easily adjustable to receive any. size of roll or bolt to be inspected, and should be readily adjustable ,as to speedand direction of rotation. The controls should. be accessible, particularly the speed control, so that the operator can, from any position along the front of the machine, regulate the speed to a high degree of accuracy to facilitate the measurement and inspection of the-cloth; The present invention fulfills these requirements.

In order to understand clearly thenature oi the invention and the best means for carrying it out,

, reference will now be had to the drawings, in

parts 3 lighten their total weight and to render the parts of the machine more visible to the operator, flanges 22 being formed integral with the walls along the edges and also surrounding each opening, to increase the strength thereof. The end frame walls are interconnected at the bottom by two lower main guide rods 24 and 26 respectively, the ends of which are inserted through matching openings in the frame walls and secured therein in any suitable manner, as by means of nuts threaded thereon. These rods 20 and 26 are preferably highly polished or lubricated to reduce friction therealong.

A lower main front roll support bracket 28 has axially aligned bearing bores formed in its lower feet ends 30 and 32 to receive slidably the guide rod 24 which thus rides thereon from left to right and vice versa along the length of the machine, the main bracket 28 also having a rearwardly inclined strut leg 34, secured at its upper end 36 to an intermediate portion of the bracket 28, and having its lower end 38 in the shape of an open rounded yoke as seen best in Fig. 3, to partially embrace the polished rod 26 so as to ride therealong, maintaining the position of the parts as shown best in Fig. 3.

At its upper end portion, the main lower bracket 28 is provided with integral upstanding studs 38 and 00, having axially aligned bores formed therein parallel to the axis of the rod 20, to receive a roll support plunger 02, which is axially slidable as seen in Fig. 2. The plunger 02 is biased toward the right as seen in that view, by the spring 44, its rightward motion being limited by the collar 46 secured on and movable with the plunger 42, and against which the spring presses. The plunger shaft extends beyond the stud to the right, having mounted thereon a cone-shaped plug 48 which is adapted to enter one end of a cloth roll I50, being roughened to enhance its frictional qualities.

At the right hand end of the cloth roll 00, there is a similar cone-shaped plug 52 which enters the other end of the cloth roll, to pro-' Vide support therefor, being part of a stub shaft 50 which is journaled in a suitable bearing aperture formed in the right hand end frame wall I l of the machine. A pulley or sprocket wheel 68 is secured to the shaft 54, for rotation therewith, being driven when power is applied through.

a belt 60 also coupled with pulley wheel 10, which in turn is mounted on and rotatable with output shaft I2 of the gear box I0, which is also shown in Figs. and 6.

It is thus apparent that through power supplied from shaft I2 of the gear box, rotation of the cloth roll 50 may be accomplished. Referring again to Fig. 2, it will be seen that the position of the main bracket 26 will depend upon the length of the cloth roll 50, and that the bracket 28 may be moved to the left or right as desired for this purpose. To hold the main bracket 28 in position, a pressure foot or brake 80 has its lower end adapted to press downwards upon the rod 24, with its upper end pivotally secured to the end 82 of a lever arm 84 by pivot pin 86, the lever arm 84 being fulcrumed in the main bracket 28 in any suitable manner and turnable about such fulcrum by means of a looking handle 08. Thus, the pressure foot or brake 80 is pressed downwards against the rod 24 by moving the handle 88 to an upright position, and released from such braking pressure, to release the bracket, by turning the handle to 4 either side, such as to the left as seen in Fig. 2.

To release the cloth roll 50 from the cones 08 and :52, I provide a retracting handle 90 pivoted to bracket 28 at 92, and connected pivotally at 00 by a pair of connecting levers 00, to the collar 00. It is apparent that turning the hantile 00 counterclockwise as seen in Fig. 2 will pull the cone 48 to the left, releasing the cloth roll 50. So as not to interfere with the free rotation of the cone 5B and its shaft 42, the collar 00 may be so arranged as to engage a circular groove in the shaft 02 so as to maintain its position longitudinally of the shaft, or an integral shoulder of the shaft 42, or other well known means may be used to accomplish this result, the cones 48 and 52 being rotatable with the cloth roll 50.

Three mutually, spaced parallel guide rods I00, I02, and I04 all lie in a horizontal plane above that of the lower guide rods 24 and 20 and parallel thereto, these guide rods also being secured at their ends to the frame end walls I0 and I2 by means of screws, nuts threaded on their ends, or other well known means, so as to maintain the spacing between the frame end walls and to be firmly supported thereby. An upper cloth roll support bracket I06 is slidable longitudinally along the upper guide rods I00 and I04, having a rearward extension I08 with bearing apertures formed in the hubs [I2 and I14 to receive the guide rod I00, and having a bearing yoke formed at IIO to slidably engage the rod I0 5, the extension I08 extending beneath the guide rod I02, as seen best in Figs. 3 and 4, to clear the same.

A pressure foot I20 is pivoted in the bracket I00 at I22, with its end I20 adapted to bear in frictional engagement against the rod I00 to maintain the position of the bracket I06 on the rod I00, pressure being applied by the hand lever I I26 for this purpose. A push rod or plunger I30 is slidably disposed in axially aligned openings formed in the bosses I32 and I30 of the bracket I06, having rotatably mounted on one end thereof a cone I36 adapted to engage frictionally inside one end of a cloth roll I00. A similar cone I02 is insertable inside the other end of the cloth roll I40 for frictional engagement therewith, being mounted on a shaft I04 for rotation therewith, the shaft extending out of the gear box M.

The plunger I30 is biased toward the right as seen in Figs. 2 and 4, by means of an encircling spring I06 the right hand end of which presses against a collar I48 engaging the plunger, so that the spring pressure cannot push the plunger beyond the boss I30. A hand lever I50, which is pivoted at I52 to the boss I32, also pivotally engages at I54 one end of each of a pair of levers I58, the other ends of which engage the collar I48. Thus, by Pulling the hand lever I50 toward the left, that is in a counterclockwise direction as seen in Fig. 2, the effect is to draw the cone I36 out of the cloth roll I00, so that a new roll I00 may be inserted or the old one removed. It is also apparent that by releasing the lever I26, the distance between cones I36 and I42 may be adjusted to fit any size of cloth roll I00.

A highly polished cloth guide rod or roller I00 is secured between the frame end walls I0 and I2 as shown, so that cloth may move thereover as seen best in Fig. 3, before moving across the examining board I26 which is made of wood or other suitable sheet material. The examining board has a width as long as the length of the rod I60, being supported ati'tsimper end edge upon themachine frame, as by engagement with a lateral tie rod I66 hung in recesses I68 formed in the frame end walls as seen in Figs. 1 and 3. The lower end edge of the examining board I62 may rest upon a similar lateral tie rod II0, shown in Fig. 3, and secured at its ends in portions I72 of the frame end walls.

After passing upwards over the guide roller I60 and over the examining board, the cloth continues upwards over the smooth upper guide roller I14 which is secured at its ends tothe frame end walls, and then proceeds downwards in the direction of the arrow-I16 in Fig. 3, and around another guide roller orshaft I18 which is also supported by the frame end walls and-is highly polished. From roller II8'the cloth I80 proceeds rightwardly downwards as seen in Fig. 3, and around the guide rod or roller I82 which is supported at its ends byithe radius arms I84, these being tensioned and biased counterclockwise by engagement with one end of spring I86 the other end of which is secured to the frame of the machine as at I88.

The cloth then moves upwards and around the surface of a counting drum I90having a relatively larger diameter, as seen best in Fig.8, being carried on and rotatably movable with a shaft I92 which is journaled at its ends in the frame end walls I0.and I2. A counter I94 is mounted on the machine frame adjacent the end of the shaft I92, so as to count the'revolutions thereof in terms of yardage of cloth or other suitable units of measurement.

As the cloth passes over the counting drum I90, pressure is applied thereagainst bya rubber pressure roller I96 the shaft I98 of which has itsends lying in a pair of inclined slots 200 formed in the machine end walls I0 and I2, so that through force of gravity, the weight of the pressure roller causes it to exert its pressure on the counting drum and cloth passing thereover. Having passed over the counting drum in a clockwise direction as seen in Fig. 3, the cloth moves downwards over the guide rod I04, and thence over a tension roller 202, the latter being carried on its ends upon lever arms 204 pivoted about the axis of rod I04 and spring biased counterclockwise by a spring 208. The cloth I80 then passes over the cloth roll 50 in a counterclockwise direction as seen in Fig.3, being thus wound thereon. Its yardage having been automatically counted, it has also been inspectedas it passes over the inspecting board I62. In order to roll the cloth off roll I40 and onto roll 50, the

shaft 54 and cone 52 have been driven by power derived from the motor 2 I0, on shaft 2 I2 of the gear box.

By now driving shaft I2 of the gear box instead of shaft 54, and in a suitable direction, the upper shaft I44 and cone I42 are driven, so as to reverse the direction of the cloth, winding it right, back again on roll I40. Figs. 5 and--6 illustrate the construction of the interior of the gearbox I4, by means of which either shaft I2 or I44 may be driven from the gear box input shaft 2 I2.

The gear box housing 14 includes top and bot: tom walls 350 and 352, sidewalls 354. and:356, and end walls 358 and 380, mounting holes 362 and 364 being formed in the end wall 358170 receive bolts for securing the housing to the frame of "the machine. The power input shaft. .2I2 is journaled in the gear box walls 354 and 3.56.:as seen best inFig... 6, having .a worm .366 mounted thereon for rotation therewith. This worm .366 engages and drives a geari368 which is mounted on and rotatable with a shaft 310 which is spaced from the shaft 2 I 2 and is disposed at right angles thereto.

The shaft 310 is journaled in the walls 358 and 360 of the gear box, preferably in anti-friction bearings 3I2 and 314.- A studwheel.3l6 is mounted on the shaft 310 for rotation therewith, having a key extending slidably into-a keyway 378 formed in the surface "of the'shaft- 310 and parallel to the axis'of said shaft In this manner, the stud wheel 316 is continuously rotatable with the shaft 310, but is yet slidable axially therealong, from left to right-as seen in Fig. 5. 1

The stud-wheel has a peripheral groove 380 which receives a crank pin- 382 depending from the distal end of a crank lever 384,"which is pivoted on the vertical shaft 386 and'movable with the shaft 386 about its vertical axis, through a limited arc, so as to move thestud wheel 316 from left to right and vice versa. A crank handle or direction control lever 380 hasits reduced end 390 extending into and secured to the upper bifurcated end of the shaft 386 for turning the said shaft for direct or reverse rotation of the machine. It is seen that the crank handle 388 extends leftwardly as seen in Fig. 6, through anopening 392 formed in a bracket 394 which is carried by the gear box and secured thereto. The upper edge of the opening 392 is recessed at several locations perpendicular to the view of Fig. 6, so that it is necessaryto depress the leftward portion of the handle 388 to clear these recesses, to allow the handle to be placed in any desired recessed position, for example, center neutral, left, and right, and a spring 396 may be used to bias the handle so as-to remain in-any selected recess.

For driving the output shaft I44 from the input shaft 2I2, it is seen first'that the'shaft- I44 is also journaled inthe walls-358-and 360, and has mounted-thereon for rotation therewith a gear 400. This gear 400 has its teeth intermeshing with the teeth of a gear 402 which is mounted on the shaft 310 for free rotation thereon. A stud 404 projects leftwardly from the left surface of the gear 402 as seen in Fig. 5, for engagement with one of the mating studs 406 on the stud wheel 3-!6 when the stud wheel is moved to the-right on turning the handle 388. In this manner, the stud wheel will drive the gear 492 and hence drive theshaft I44.

To drive the other output shaft I2, which is journaled in the gear box walls 358 and 369,- a sprocket wheel M0 is mounted on the shaft -l2 for rotation therewith. Another sprocket wheel H2 is mounted on theshaft 310 for rotation thereon, and is coupled by sprocket chain 4I4, with the sprocket wheel 4I0, so as to drive the latter. A crankstud 4I6 projects rightwardly from the right face of the sprocket wheel 412 as seen in Fig. 5, so that it will engagewithone of the leftwardly projecting studs4I8 on thestud wheel-376, when thestud wheel is moved toward the left, for driving the sprocket wheel 4I2. In this manner, it is seen that on moving the stud wheel to the left, the shaft "I2 will be driven, instead of the shaft I44.

A brake cylinder 420 with surrounding-brake band, asseen best in Figs. 1 and 5, may be mounted-on one of theshafts of the gear box to regulate thespeed and to stop rotation suddenly when necessary, being actuated by a brake han- 7 The driving motor 2H) is mounted on a motor base 2| l, which is hinged at 214 to the machine frame and wall [0, so that the weight of the motor exerts a downward pull upon the belt 216 by which its drive shaft pulley 2H is coupled to the upper driven pulley 220 mounted on the shaft 222 for rotation therewith so as to drive the shaft 222. Shaft 222 is journaled in a pair of channels or brackets 226 which are pivoted at their ends 228 as seen best in Fig. 2, to the frame end wall 10. A push rod 230 has its upper end pivotally supporting the outer end of the bracket 226, so as to be able to elevate or lower the same. At its lower end 232, the push rod 230 is pivoted to one end of a pedal lever 234 which engages the shaft 236 so as to turn the shaft about its axis, the shaft 236 being pivoted in the machine frame end walls I!) and i2 for this purpose. A treadle or step 240 is carried upon the outer ends of radius levers 2M, as seen in Fig. 3, which are carried by and turn with the shaft 236, being normally biased by gravity into the positions of Figs. 1 and 3. The treadle 2E0extends the entire length of the machine, so as to be easily accessible to the operators foot at any time.

Referring now again to Figs. 1 and 2, it is seen that the gear box input shaft 2l2 carries a pulley 250 for rotation therewith, the pulley 252 being coupled by means of the V-belt 254 with a variable speed V-pulley 258 which is also mounted on the shaft 222 for rotation with pulley 220. The variable speed pulley 256 has two halves, one being shown on either side of the V-belt 254 in Fig. 1, and having their inner faces conical in shape. The V-belt 254 extends between these two conical pulley faces, being driven thereby, and by varying the spacing between the two faces by moving them nearer together or further apart by the push rod 236, the ratio of effective diameter of pulley 256 over that of pulley 25!] is adjustable to obtain any desired speed, by merely using the foot treadle 2 55 for this purpose. As the spacing between the two conical faces of the V-pulley 255 is varied, the weight of the motor 2 l immediately takes up any slack, since both the motor and the brackets 226 are pivoted in the frame end wall Fig. 7 shows a modified form of the invention, all the elements being the same except that it provides means for inspecting the cloth both across the examining board in an inclined plane, and also in a vertical plane along the back of the machine. To a machine of the type shown in Fig. 1, we add a pair of upright brackets 225, one at each end of the machine, and secured to the end walls It and E2 by means of bolts 21'! and 279.

The brackets 275 are interconnected by smooth guide rods or rollers 28!), 282 and 284, all parallel to the shaft I92.

We provide an inspecting board 300, the upper edge of which is hung at the ends in hooks 382 formed in the brackets 215, and the lower edge of which rests upon a lateral rod 304 which is seated at its ends in the upwardly open slots 366 formed in the portions N2 of the frame end walls It] and I2.

In the form shown in Fig. 7, it is seen that the direction taken by the cloth is somewhat different from that in Fig. 3, as follows. Being on cloth roll M6, the cloth 3% travels in the direction of the arrow 3m, upwards over the left face of the inspecting board 300, and then over the upper edge of the board 38!) and downwards in the direction of the arrow 312 and around the roll or rod I60. Thence it moves toward and around rod I82 and around the counting roller I in a clockwise direction, being counted as to yardage as already explained. Then the cloth proceeds around roll 282 and upwards in the direction of arrow 314 and over roll 28!) and downwards in a vertical plane along arrow 3H5 in which plane it may be inspected by the operator from the rear of the machine.

Then it moves over roll 28% and downwards over tension roll 202 and onto cloth roll 59. When the inspection and measurement is completed, roll MB is driven instead of roll 5i], so as to rewind the cloth right back again on roll Hit]. By means of suitable changes in the shape of the members shown conical at 58, 52 and the like, to flatten them out somewhat, bolts of cloth may also be accommodated in the machine with the same ease as rolls of cloth.

' While the apparatus, constructed and arranged asdescribed above, may be used for all types and weights of material, which it is desired to measure, we have provided in accordance with our invention an alternate arrangement as illustrated schematically in Fig. 9, when the cloth to be measured is of the heavier or thick pile type. To this end there is provided an auxiliary highly polished guide rod or roller 53%, similar in purpose and function to that of the rod I69, and similarly secured between the frame end walls. As noted in Fig. 9 the said rod 586 is so positioned whereby the cloth passes thereunder and thence between the roller I and drum E92 and over the roller I18 in substantially a straight line- There is thus provided substantially tangential contact of the cloth with the measuring drum 192 instead of the arrangement as shown in Fig. 3. A similar arrangement of one point contact with the measuring drum may also be provided in connection with the Fig. 7 form of apparatus where inspection of the cloth is desired.

While in Fig. l of the drawings we have shown a toggle switch 505 of usual construction for energizing the motor 2H1, our invention also contemplates the following foot control switchmeans for automatically starting the operation of the motor when the operators foot is placed on the treadle 240, as clearly illustrated in Figs. 8 and 10.

A cable member 5!!) of wire or other suitable material is fixed at one of its ends to the frame H] by a bolt member 5!! or other suitable attaching means. The said cable 5"} extends in a direction toward the frame l2 and is arranged parallel to and closely adjacent the treadle 220. The said cable may be disposed at about the same level as the treadle 240 in its uppermost position or slightly above the same. The opposite end of the cable 5H3 is attached to a switch arm 512 carrying an electrical contact portion 5l5. A spring 5E6 keeps the cable 5H] relative taught and a second spring 5|! stronger in action than the spring 5H5 normally tends to keep the switch portion 515 out of contact with the electrical contact member 528. It is thus seen from the above description that when the operator places his foot on the treadle 2 56, a portion of the operators foot will rest over the cable 5H1. Slight pressure on the cable will cause the switch arm M2 to make electrical contact between the members Elf) and 520 and thus energize the motor 2!!) even if the toggle switch 505 is open. Removal of the operators foot from the treadle 24B and from the cable 5H] will automatically shut off the motor 2).

The switch device parts 5l2, 516, 5, H5 and 529 may be housed in a suitable casing 525 fixed to the frame l2 by an angle bracket 526.

It is further noted that in accordance with our invention we have designed our apparatus in such manner that the front inspection board member 309 and rear inspection device illustrated in Fig. 7 are at average eye level so as to avoid undue eyestrain or neckstrain on the part of the operators or inspectors.

It is thus apparent that we have described a novel and improved form of machine for the measurement and inspection of cloth both on rolls and bolts, with ease and accuracy.

Although we have described our invention in specific terms, it will be understood that variations may be made in size, shape, materials and arrangement Without departing from the spirit and scope of the invention as claimed.

We claim:

1. In a cloth measuring and inspecting machine comprising a frame: first means carried by said frame for supporting for rotation a first cloth roll, second means carried by said frame for supportin for rotation a second cloth roll, third means carried by said frame for supplying power to said second means to rotate the same to unwind cloth from said first cloth roll and onto said second cloth roll, the improvement comprising: said third means including a motor disposed in said frame to provide driving power, gear box means coupled to both said first means and said second means for driving the same, and including power input means in said gear box coupled to said driving motor for being driven thereby, first and second power output means in said gear box with gear shift means accessible to the operator for driving from said power input means either of said power output means as desired, and variable speed means coupling said motor and said power input means, said variable speed means comprising a first pulley mounted on and driven by said motor, a second pulley mounted on and rotatable With said power input means of said gear box, a third pulley rotatably supported on said frame and coupled to said first pulley by a belt, a variable speed pulley mounted on said frame and rotatable with said third pulley, and coupled to said second pulley by means of a belt, and means accessible to the operator for changing the speed ratio of said variable speed pulley in relation to the second pulley, whereby the speed of drive of the second pulley is variable, said third pulley and said variable speed pulley being disposed on a common bracket pivoted in said frame below said second pulley, said motor pulley being disposed beneath said common bracket with said motor being pivoted oif-center in said frame so that the weight of the motor acts to exert a down- Ward bias upon said common bracket to maintain said two belts continuously under tension, said speed means accessible to the operator for changing the speed ratio including a lever pivoted in the frame and engaging said variable speed pulley for adjusting the spacing of the variable speed elements thereof to vary the speed ratio, and a treadle pivoted in said machine frame and engaging said lever for actuating said speed change lever, said treadle being substantially as lOIlg as said machine and extending lengthwise therealong for convenient accessibility to the operator at any point therealong for speed change.

2. The construction according to claim 1, characterized further in that a brake drum is carried by one of said gear box shafts, a brake band is adapted to engage said drum for regulating the speed thereof, and a control lever means is provided for actuating said brake band.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 458,224 Dinsmore Aug. 25, 1891 541,192 Walker June 18, 1905 935,494 Griffin Sept. 28, 1999 980,279 Ireland Jan. 3, 1911 1,013,461 Taylor Jan. 2, 1912 1,023,691 Taylor Apr. 16, 1912 1,238,532 Lemberg Aug. 28, 1917 1,272,513 Parsloe July 16, 1918 1,446,281 Turner Feb. 20, 1923 1,491,200 Cline Apr. 22, 1924 1,610,375 Hinrichs Dec. 14, 1926 1,664,368 Mason Mar. 27, 1928 1,702,971 Jeffress Feb. 19, 1929 1,930,077 Bentley Oct. 10, 1933 2,171,741 Cohn et a1. Sept. 5, 1939 2,174,129 Van Kempen Sept. 26, 1939 2,205,630 Remington June 25, 1940 2,407,899 Nye et a1 Sept. 17, 1946

Images