US835430A - Machine for cutting out rubber soles or similar articles. - Google Patents

Description

. No. 835,430. PATENTED NOV. 6, 1906.

A. N. HOOD.

MACHINE FOR CUTTING OUT RUBBER SOLES 0R SIMILAR ARTICLES.

APPLICATION FILED JAHJB. 1904.

3 SHEETS-SHEET 1.

NOI 835,43C. PATENIED Nov. C, 1906.

A. N. ECCD. NIACEINE ECR CUTTING CUI RUBBER soLEs 0R SIMILAR ARTICLES.

APPLICATION FILED JAN. 18. 1904.

l a SHEETS-MEET 2.

flor/MW No. 835,430. PATBNTED Nov. 6, 1906. y

A. N. Hoon.

MACHINE FOR CUTTING OUT RUBBER SOLES 0R SIMILAR ARTICLES.

APPLICATION FILED JAN. 18. 1904.

3 SHEETS-.SHEET 3.

@milk/Leona b @imam UNITED STATES PATENT onirica.

ARTHUR'N. HOOD, OF BOSTON, MASSACHUSETTS.

MACHINE FOR CUTTING ouT RUBBER SOLES oR SIMILAR ARTIcLES.

Specication of Letters Patent.

Application led January 18, 1904. Serial No. 189,479.

My invention herein described is embodied in a machine for cutting rubber soles for' boots or shoes from a sheet of material pre-- pared for that purpose. The principle of construction permits the application of the machine to the cutting of a single sole or multiple soles from the same sheet by one operation, and one set of mechanism moves the sheet to the knife or knives, while another set moves the knife or knives to keep it or them always-parallel with the line of movement of the sheet.

The general features of the invention and the details thereof are set forth in the speciiication and indicated in the claim appended thereto and are illustrated in the accompanyi'ng drawings, in which- Figure 1 is a front view, vpartly in section, of a machine embodying my invention. Fig. 2 is aplan view of the invention, and Fig. 3 is a side elevation of the invention.

In the drawings, which show the embodiment of my invention, the numeral 1 indicates the bed of the machine, which is supported upon legs 2. U on this bed are parallel guideways a a, on w 'ch moves the lower slidin late 3. This carries parallel guideways l?, arranged at right angles tothe ways a a, and on the waysb b moves the upper sliding plate 4. The lower plate 3 is reciprocated by meansof a cam 43, to which-it is connected by a link 45 and intermediate link 46. These parts are shown in front elevation in Fig. 1 and more clearly in plan in Fig. 2. Link 46 is pivoted on the bed, and its free end is pivoted to the free end Aof link 45,

' which latter is pivoted to the plate 3, and at the junction of the links a in connects them withthe path of the cam, (s own at 43a.) The cam-Wheel 43 is fixed on a shaft 42, which has its bearing in the bed and carries on its lower end a gear-wheel 44, in mesh with the main driving-gear 36 on the upper end 'of a shaft supported in bracket 34. This shaft is driven t ough bevel-gears 37 and 37a by the main driving-shaft 38, which bears in bracket 39 and has pulleys 41 V41. The cam-path is made to conform to the lateral movement required bythe shape of thesole to be cut and operates in connection with a crank which gives the movement longitudinally of the sole,.the combined movements determining the precise path of the material to the knife.

knives. v Driving-gear 36 (see Fig. 3)' isin mesh with a gear-wheel 31, fixed on vertical shaft 27, turning in bushing 30 in sup orting-brackets 23. On the upper end of sliaft 27 is fixed 'a crank-Wheel 26, to which is connected by a crank-pin the rod 29, also connected lwith -a'nd transmitting longitudinal reciprocatingl motion to the upper plate 4. The position lof the crank-pin and conse uent movement lof the plate are determined y the length of :the sole to be cut.

-As plate 4 moves upon late 3 and in direction transverse tothat o plate 3, and simultaneously therewith the sheet of rubber carried on the up er surface of plate 4 will'have a movement tllfe resultant of these two movements, and the shape of the'v cam-path 43a and its adjustment to the movement given the upper plate by the crank-pin 26a will determine the line of movement of the sheet coincident with the shape of the sole.

Patented Nov. e, 190e.

The knives occupy stationary positions,

but must be turne to maintain tangential position relative to the soleat every point in the. regress of the sheet.. t

hile, as before intimated,` one knife may be used alone, it is a geat advantage of my invention that several at once may be used as well, and such multiple knives are shown herein. They are indicated at 17 `fixed to holders 16, secured to the lower ends of spindles 8. These spindles are vertically movable in bearings on a bracket 6, fixedto a support 5, fixed upon the bed. The spindles turn also in their supports and have splined on-the upper ends of each a pinion 11,

all of which are in mesh and properly con- IOO lgear on the shaft 9." This shaft is mounted in brackets, as shown in Fig..-3. y On Yits rear end it carries aA pinion 54 andl is turned by a seginent-leveh 23, meshing with 54 and iv-v oted on a suitable support, as shown in ig. The-free end 4of the segment-lever rests on and is moved by a cam 21, mounted ona lIO ' ism is made to stop and start at a desired,

bearings, as shown in 3, with a bushing '20 and has fixed on its lower end a gear 22, in

mesh with gear 32 on the shaft 27,'-Whereby it is driven 'simultaneously with the other mechanisms hereinbefore described. The free end of the segment-lever is held to its cain by means of a spring 55, and the arts are so adjusted in connection With the s ape of the face of/cam 21 that the knife is always kept in position tangential to the edge of the sole in process of cuttin and in exact imitation with the process of hand cutting.

The knife may be set at any desired angle. The sole sheets or sheet of rubber from Which the soles are to be cut lies on the upper plate, as indicated at c e. The machine either by hand or by any suitable mechanpoint and in its motion the' sheet is moved against the lowered knives, each of which cuts a sole of the same size and shape andA by one movement of the machine, the direction of `movement bein indicated by the arrows.

In order that t e knives may be raised when the cutis completed and lowered on a fresh sheet, I have provided levers 13, pivoted to the brackets and engaging with collars'fixed on the spindles and extending back to a. connecting-bar 52, which is pulled down to' raise the spindles by means of a rod 53, which is strapped to an eccentric 47 on a y shaft '50, Figs. 1 and 3, operated by a handsheet, one of said elements Wheel 51 or y any suitable connections with the main driving mechanism.

I claim as my invention- 1.. In a machine for cutting rubber shoeblanks from rubber sheets, a plate for supporting the sheet, a cutting-blade pivoted on an axis perpendicular to the plane of the relatively stationary to the other, means or `moving said other elementwith relation to the irst to eect the severance of the blank from the sheet while the cutting-blade is held constantly in for turning the blade on its axis to maintain its. cutt' edge tangential tothe edge of the blank. alsliilie cutting progresses, substantially as described. l I

2.. In a machine for cutting rubber shoeblanks from rubber sheets, a movable plate for` supporting the sheet, a relatively stationary cutting-blade pivoted on an axis pergendicularly to the. plane of the sheet Wit means for maintaining it constantly in contact with' the plate dui-'ing the cutting action,` and means for moving the plate to causethe cutt' -bl'ade to sever the blank from the sheet, said means including a changeable cam Whereb blanks of difieren-t shapes may be cut by't e same` machine, substantially as described. 4

`3: In a. machine for cutting rubber shoesaid spindles, a rack meshi blanks from rubber sheets, a movable plate for supporting the sheet, a relatively stationary cutting-blade pivoted on an axis perpendicular to the supportin -p1ate, the edgeof thecutter acting throng against the plate to sever the blank, means for moving the plate to cause the cuttingblade to sever the blank from the sheet, and means for turning the blade on its axis to Vkeep its cutting edge tangential to the ed e of the blank as the cutting. progresses, su stantially as described.

4. In a machine for cutting rubber shoeblanks from rubber sheets, a-movable plate for supporting the sheet, a plurality of cutting-blades `arranged above said plate and relatively stationary thereto and having their edges bearing against the plate during the cutting action to sever the blank, means including a changeable cam for moving said plate in a horizontal plane, and means for simultaneously turning said knives to maintain the cutting edge tangential to the ed e of the blanks as the cutting progresses, su stantiallyv as described. v

5. In combination, a plate for supporting the blank to be operated upon with means for imparting a compound reciprocating mothe sheet tion thereto, a plurality of blade-carrying f spindles rotatably mounted above said plate,

a single rack meshing with gears carried by tween said spindles whereby they arerotated in unison, a cam having. operating connections to vone of said spindles, and means for rotating said cam in unison With'the movenie-nt of the supporting-plate, substantially 1 as described. contact with the supporting-plate, and means.

7.- In combination, a platefor supl the materialv to be operated on, Wit means for moving the same, a. plurality of knife- 'lymg spindles arranged in line above said plate, gears carried on the upper ends of with all of said gfls, rocking lever havin connections with one of said spindles Where y the rocking of the lever rotates said spindle and a cam bearing against the other end of the lever With means for operating the cam in unison porting IOO with the movement 'of the supporting-plate,y i

substantially as described.

. In testimony whereof l aflix my signatlrr in presence of' two Witnesses. y

v 'ARTHUR,N. HOOD.

Witnesses:

ROBERT L. RICE, CATHERINE A.. ROCHE..

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