US1191344A - Machine for cutting block-soles. - Google Patents

Description

G. QUARMBY. I MACHINE FOR CUTTING BLOCK SOLES.

APPLICATION FILED FEB-27. ms.

Q 1,1 9 1 ,344. Patented July 18, 1916.

Fig.4.

Witnesses: Inventor,

v 34 George quar-mt mu NON Rm PETERS w. rworu-umc. ansmNrfmN. n. c.

GEORGE QUARIVIBY, OF SAUGUS, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO CHARLES T. I-IILLIKER, OF LYNN, MASSACHUSETTS.

MACHINE FOR CUTTING IBLOCK-SOLES.

Specification of Letters Patent.

Patented July 18, 1am.

Application filed February 27, 1915. Serial No. 11,075.

To all whom it may concern Be it known that I, GEORGE QUARMBY, a citizen of the United States, residing at Saugus, in the county of Essex and State of Massachusetts, have invented certain new and useful Improvements in Machines for Cutting Block-Soles.

The object of the present invention is to provide certain improvements and advantageous constructional features not embodied in the machine heretofore patented by me, the subject ofLetters Patent 803,710, dated Nov. 7', 1905. These improvements in construction and the advantages thereof will be set forth in specific detail in the acco'mpanywould be the tendency when the clamp screws ing specification and drawings in which- Figure 1 is a side elevation of a block-sole cutting machine partly broken away and 1n partial section in order to show certain of my improved constructional features; Fig. 2 is a horizontal section taken on the line A -A of Fig. 1; Fig. 8 illustrates a fragmental portion of the apron shown in Figs. 1 and 2 and the manner of fastening the apron to thev block; Fig. 4 illustrates in side elevation the detailed construction and manner of'adjustment of the finger-guard; Fig. 5 is a plan view of the bed or table of the machine and also illustrating the finger-guard in plan, and Fig. 6 a sectional elevation of the table taken on line DD of Fig. 5 illustrating the means for adjusting and clamping the tablea e. g Fly invention relates to machines for cutting block-soles or soles which are cut to an approximation of their final shape by curved knives acting on a strip of sole leather, as described in my hereinbefore mentioned patent 803,710 of Nov. 7, 1905 and as also described in a previous patent to D. T. Knox, 558,964 of April 28, 1896, to which patents reference may be had for detailed description and construction of machines of the general type to which my invention appertains. In machines of this type heretofore constructed in manipulating the apron and cutting block to remove or replace the same it has been customary to accomplish these operations by tightening or loosening the two clamp screws which extend throughlugs or projections of the frame, as shown in Fig. 2.

of the Knox Patent 558,964. As there shown, the edge of the apron is illustratedin full line directly behind the clamp screws, this apron having the rectangular bosses or lugs (shown in dotted lines) which abut against the cutting block (also shown in dotted lines). In order to remove or reverse the cutting block in a machine of this construction or'to adjust said block vertically, it will be seen that it is incumbent upon the operator to unscrew the two clamp screws which hold the apron against the cutting block and which also holds the cutting block in place, after which it becomes necessary to remove the apron entirely from the machine before the cutting block can be satisfactorily manipulated for reversal, removal or vertical adjustment. Otherwise, it is necessary to hold the apron from falling from the machine, as

are unscrewed. It is obvious'that this is an awkward procedure.

One of the objects of my present invention, therefore, is to provide a construction wherein the above awkward and undesirable method of manipulating the cutting block and apron'will be'eliminated, and wherein the apron can be retained in place without the necessity of holding or removing the same in order to adjust the cutting block vertically,-because to accomplish this latter purpose heretofore it has been necessary for the operator to leave his position before the table and work around in front of the machine in order to loosen the block. In the present improved method it is only necessary for the operator to slack off the block clamp-screw, which can be done without the operator leaving his position at the table.

Another awkward and imperfect construction in machines of the character hereinabovc referred to is the safety-guard provided for the protection of the fingers infeeding in the leather blanks below the cutting knives. As it sometimes happens that the leather inserted beneath the knives is thicker in one place than in another, and as the guard heretofore provided is incapable of adjustment to "allow for difierences in thickness of the leather, the fingers become cramped under the guard, and facility in handling the leather for cutting isinterfered with. v y I Another object of my invention,. therefore," is to provide a finger-guard which will have flexibility of adjustment, and enable the fingers to reach far enough under the guard to. satisfactorily handle or guide the leather in a manner properly to locate itfor cutting.

This feature of my invention will also be hereinafter described in detail.

Still another object of my invention is to improve the operation of the table-gage which, heretofore, has been more or less,

troublesome in that the means employed for clamping or fastening it have not been positive and reliable in preventing the gage from slipping.

As in my former Patent 803,710, E represents the knife supporting beams; F arms which are afiiXed to the beams and outwardly connected at G to the supporting-frame H. The beams are moved toward and away from the cutting-bed by means of crank-pins I, affixed to cranks J on the power-driven shafts M, the rods L connecting the crankpins with the ends of the beams.

The mechanism just described is old, be ing found in both the patent to Knox, and the patent to myself hereinbefore referred to.

Referring now more particularly to the detailed improvements of the present invention, 1 represents an apron of sheet metal or other suitable materialover which the finished soles pass into a box or other receptacle provided for the purpose. A cutting block 2 of hard wood is located on the adjustable seat 3 in a manner to alinc with the cutting plane of the knives E. The set screws 4 (one at each end) in the frame 5 adjust the position of the seat 3 up and down, and consequently the position of the cutting block in like manner. Extending through the frame 5 are two studs or bolts 6, 6 (Fig. 2) terminating at the table end of the machine in nuts 7, 7 which nuts limit the outward travel of the head-piece 8. The apron end of the bolts 6, 6 have riveted heads 9, 9. The apron 1 is provided with slots or holes 10, Fig. 3, thus permitting the apron 1 to be hung on the bolts 6. Attached to the frame 5 is a bearing block 11, secured to said frame by means ofscrews 12, 12 and extending into this bearing and through the head-piece 8 is a hand screw or block clamp 13 having a handle 1 1. The frame 5 has projections 15, 16 and 17 which abut against the cutting block 2 when the block clamp 13 is screwed up tightly in a clockwise direction. When the block 2 isinserted in place, as shown in Fig. 2, it is guided thereto by means of the tongue and'groove arrangement shown at 18,18, Fig. 2. tightenup the block 2 it is only'necessary to turn the block clamp 13 in a clockwise direction, as heretofore stated.

It will thus be seen that by means of the construction above described the manner of handling the cutting block and the apron is much simplified, the single hand screw or block clamp 13 replacing the twoclamp screws used in the. previous constructions for securing theblock and the apron.- It will be obvious that the cooperation of the block clamp 13, the frame 5 and the bolts 6 render it possible to conveniently adjust or remove the cutting block without necessitating the previous awkward procedure employed of manipulating more than one clamp screw, holding the apron and adjusting the block almost simultaneously. The advantageous method of hanging the apron particularly, in the present invention, eliminates any necessity for the operatorhaving to leave his position at the table in order to adjust the cutting block.

Referring now, to the details of the fingerguard, 19 represents a guard-rail rigidly mounted at 20 in lever arms 21, the lever' arms 21 in turn being supported in suitable bearings 22 formed in bearing blocks 23 se cured to the table by means of. the screws or bolts. 24, 24, etc. The lever arms 21 and consequently the guard-rail 19 are adjustable upwardly and downwardly by means of the set screws 25, and also have a relative lateral movement by means of the l.oosejoint connections or mounting 26. In this manner it will be seen that the guard-rail 19 is not so rigid laterally but that it will accommodate its adjustment to give the necessary roomfor the fingers when they are inserted beneath the rail or rod 19, as determined by the variation in thickness of the leather blanks-to be cut.

I will now refer to my improved means for fastening or clamping the table-gage. As herein shown in Figs. 5 and 6, 27 represents a transverse section of the table 28 (Fig. l) and 29 an adjustable table-gage having an upright flange-30, The gage 29 is fastened to. a reciprocating slide 31 in the table 2.8 by means of the studs 32, 33, and a second reciprocating slide 3-1- is operatively connected with the slide 31 by means of a rack and pinion (not shown). Thus, when the gage 29 is moved in one direction the slide 31 is moved with it in the same direc tion, being rigidly secured to said gage by means .of the studs 32,33. The slide 31, however, is moved in the opposite direction. The object of thisdifferential action-of the slides is to maintain the center line of the knives to have always the same relation to the work and at the same time to permit variation of the cut by moving the gage to vary the position of the blank to the right or left of the center line. This adjustment, however, is not a part of my invention, but is described only to illustrate its relation tothe clamping means for the table-gage. 35 represents a bolt which passes through the portion of the table 27, and which bolt isprovided with, a head '36. The bolt is screw-threaded at the top, and screwed thereon is a clamp-screw 37. This bolt 35 is free to travel in a slot 38 in the table. By this construction it will be seen that the table-gage can be moved in a right or left direction by unloosening the clamp-screw 7, and that when the desired position of said gage is determined it can be set or secured in said position by tightening the clamp-screw 35. Heretofore, the means provided for accomplishing this result have been imperfect, with the consequent result that the table-gage would slip from the predetermined position, causing annoyance and improper cutting of the blank. The positive clamping arrangement of the present invention, however, eliminates this difficulty.

In accordance with the provisions of the patent statutes, I have herein shown and described certain forms of my invention as being particularly adapted to the purposes to be accomplished, but it is to be understood that I do not limit myself to the use of such forms only, but wish to cover by the appended claims all modifications thereof within the spirit and scope of my invention.

lVhat I claim as new and desire to secure by Letters Patent of the United States is:

1. In a sole block cutting machine, a beam movable from and toward the cutting-bed, a knife carrier suitably secured to the beam, a cutting block operatively located with re spect to the beam, an apron suspended in front of the cutting block, and means for tightening the cutting block and apron in operative position simultaneously by a single operation.

2. In a sole block cutting machine, a beam movable from and toward the cutting bed, a knife carrier suitably secured to the beam, a cutting block operatively located with respect to the beam, an apron suspended in front of the cutting block, and means for adjusting the cutting block while the apron is suspended in front of the same.

3. In a sole-block cutting machine, a beam movable from and toward the cutting bed, a

knife carrier suitably secured to the beam, a cutting block operatively located with respect to the beam, an apron suspended in front of and parallel with the cutting block, and means for tightening the cutting block and apron in operative position simultaneously by a single operation.

4. In a sole-block cutting machine, a beam movable from and toward the cutting bed, a knife carrier suitably secured to the beam, a cutting block operatively located with respect to the beam, an apron suspended in front of and parallel with the cutting block, the said apron being provided with slots or openings for the reception of headed-over bolts, a stationary abutting frame behind the cutting block, a floating head member behind the stationary frame, bolts extending through the floating member, a stationary member and apron for linking them together, retaining means on the bolts outside the floating member, and a suitable hand clamp extending operatively through the floating member and into engagement with a stationary member for tightly securing the apron and cutting block together.

5. In a sole-block cutting machine, a beam movable from and toward the cutting bed, a knife carrier suitably secured to the beam, a cutting block operatively located with respect to the beam, a table for feeding stock to the cutting block, and a finger-guard extending parallel with the length of the cutting block and supported by the table the said finger-guard being adjustable to allow propermanipulation of the fingers inserted beneath the guard upon variation in thickness of the stock to be cut.

6. In a sole-block cutting machine, a beam movable from and toward the cutting bed, a knife carrier suitably secured to the beam, a cutting-block operatively located with respect to the beam, a table for feeding stock to the cutting block, and a finger-guard extending parallel with the length of the cutting block and supported bythe table the said finger-guard being automatically adjustable by means of loose-joint connections to accommodate the fingers to operative manipulation of the stock notwithstanding variations in thickness of the latter.

7. In a sole block cutting machine, a beam movable from and toward the cutting bed, a knife carrier suitably secured to the beam, a cutting block operatively located with respect to the beam, an apron suspended in front of the cutting block, mechanism cooperatively related to the cutting block for vertically adjusting the latter, and means for tightening the cutting block and apron in operative position simultaneously by a single operation.

In testimony whereof I have affixed my signature, in presence of two witnesess.

GEORGE QUARMBY. Witnesses ARTHUR F. Knnrn, MARION M. THORBURN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

Images