US1295135A - Toe-rest for lasting-machines. - Google Patents

Description

1.*1. 00L/IN.

TOE REST FOR LASTING MACHINES.

APPLICATION FILED IULY 30.1915.

1,295,11 35. Patented Feb. 25, 1919.

UNITED` sTATEs raTiiiNT oEEIoE.

JOHN VJ. inonAN,` or cAMrELLd MAssAcHusETTs, ,AssI'erNJIt` EYiviEsNE AssIGNMENTs,

ronATioN or NEW JERSEY.

To UNITED sHoE MACHINERY CORPORATION, oErATEEsoN, NEWJEESEY, A Golia- ToE-REST Eon LAsTING-MAHINES.

To alllfwhom'ztlmay concern:

VBe it knownthat I, Jol-IN J. DoLA'N, a

Vcitizen of theUnited States, residing at Campello, in the 'county of Plymouth'and State of"h l'assachusett's7 have; invented certain Improvements inToe-Rests'for Last ingMachin'e's, ofV which the following description,` in connection with .the accompanying drawings, isa specification, like ref- 1 erence characters on the drawings indicating like parts inthefseveral figures. y u, Thisinventionrelatestor lasting machines andfparticularly to artoe rest for `use upon i lasting machines ofthe bed'type.

' with a portion thereof removed below the `part of its surface on which the shoerrests so back;

resistance ofthe pad at this" pointand` en- V -vention Jiii-which the padihas-a plurality of` It is very desirable during the lasting operation upon arshoe toe to apply sufficient pressure along thetip `seam to prevent dis- `placemeintof any'V portion ofthe tip seam toward the` toefbythe-lasting instrumentali- 2O-l ties;4 Ithas'zbeen the experience under commercial conditions thatfreque'ntly too much pressure is-appliedllocally tothe mid portion ofthe tip seam, the effect ofsuch pres- .sure appearing as a blemish'upon the `lasted upper. Y p y 1 Features `of1 the invention consist in a 'novel organizationI comprising instrumentalities tending to displaceV the tip seam,` a

holddown for applying vpressure to the shoe, and aL toe rest-having a resilient member that it willyield to pressure of thek shoe and engageV the shoeL over a more extended area Vtodistribute `the pressure on the :tip seam.

As shown herein the rest-member is a'block ofresilient material; for example, rubber,

havingl an approximately flat: toe engaging Y surface and centrally beneath this surface ,is 'formed a recess extending from front to This recess or cavityfdiminishes the ables the lateral portions of the pad to 4come i into firmer "engagement with the -shoe 1 than they would otherwise do.

Another feature ofthe invention consists inA interchangeable means located in therere'silienc'y of the toef pad to suit varying conditions. As` shown herein a spring having Specification of Letters Patent. g Pfntdlebi 25; 1919, Application iiiedtiuiy so, 1:1315. serial No. 42net..,

use, andthe -yielding quality of `the central portion ofthepadmay therebybe controlled andinay be made either greater or less than 'theend portions of the pad.

AAnother feature of the invention consists in `the lcombination with` a yielding pad member having a; recess or cavity therein and a hold-down for applying` pressure to ,the shoe, .of asupport for the -pad member comprising-a box in which the pad member fisrconin'ed, the recess or cavity in the pad 4member permitting `the pad member Ito be deformed into theirecess in response topresdistribute theJ pressure substantially throughout; the extentl of the; tipv seam without `apply-ing "at any point an objectionable pressure.

scription when readin; connection with the accompanying drawings. and will be pointed out inthe appended claims'.r

Fig.2 illustrates the relative positions of theparts before the pad adapts itselfto the ushoe;

, rig; a iiiusfrates a mediaan-0n. in the mounting of the/ spring in the'p'ad;

- n;Fig.,l'isaperspective view of a toe pad centrally recessedbut without a spring; and

'Figa 5 illustratesa modification of the inirecesses proportioned fin si'zef toy give the varying ldegrees of resiliency at'different portionsof the padcontemplated by this inl Y i ii-v'ention. f cess or cavity for varying or controlling the p a support 2 whichis rigidly upheld on a toe 'Referringto Fig. l, the toe rest comprises post 4: `and has a segmental seatfor atoe pad carrier inthe form of a box 6. A rubber toe J pad 8 is seated in the padbox 6 andis held therein;` byi` a pin 9 which passes-through' These and other features of theinvention will appear fromthe following detailed de- Figlure 1 of thel drawings shows portions. Aof commercial lasting machine including a toe frest which is Vconstructed `inaccordance with -this invention, the parts of the toe` rest :being 4shown as :having adapted themselves :.fcenter: outs.of j linewith the spring. 20.". I'

'holes Y1o .in pad-.hexe andan@ through-Slots 12 on the support 2. The pin, therefore, holds thepad in the box and also retains the box' on the support, but theA slots 12 permit .tion of the padto compressionrdue to pressure of the toe of the shoe uponpit and to al- .low the toe toindent. the pad and become more deeply embedded in it, as is' indicated inFig. l,.than would occur if the pad were not recessed. The opening also reduces the resistanceof .the lateral portions of the pad as it provides aspace into which the rubber '.may be displacedfby pressure upon the pad.

It may be desirable, under some conditions,

to restore a` portion: of the resistance of the central part orV the pad. AThismay be done -by introducing into the opening a suitable spring. 20. Bythis means,the resiliency of -ther central portion of thepad may be locally controlled in accordance with the requirements of the work.

Many of the advantages of my invention -may be secured .by forminga. single opening in the'pad, as'indicatedzin Fig. r4:,'which is smaller than that employed when the spring 20 isY to bejnsedV and which vserves to reduce the resistance of the .centralportion` of the pad and avoids the objectional .effects oflexcessive pressure at this point.

Fig. 5 illustratesa still further'modificationl in which the number of openings is increased andY their size proportioned to the degree of resistance required in the different portions of the pad. As shown, the largerholes are arranged near the center and theholes rdiminish in size toward the lateral portions of the pad. It is to be .understood, of course, that air spaces or cavities of any kind formed inthe Irubber will, if properly located and of proper size, haveV asimilar effect and come the scope ofthis invention. Iny Fig. 3 is shown` a spring'which enwithin gages atA one .end Va button 22 having a -stud 24Lto enter the spring and a headed 55` projection 26fwhichmay belvulca'nized into the ybody lofthe pad, -or otherwise-permanently secured therein.'A The'opposite :end

ofthe spring-may extend through lafhole in the lower portion of the pad .and rest `against the box 6. .By thisf'construction 1 metallic 'bearing surfacesjiare providedfor eachi en d 4of the spring 20 'whereby greater durability is secured..l The retaining pin 9 may. be"positioned'at one sideA of the 'bythevpressureof the'last.-

Having fullyfdescribed my invention, I claim as new and desire to secure by Letters Patent of the United States:

'1.,'In'a lasting machine, meansy to .hold a shoe in position in opposition to instrumentalities tending to displace the tip seam comprising,in combination, a toe rest having a resilient member with a portion thereof removed below that part of its surface on which the toe of the shoe rests, and constructed and :arrangedI to cause the rest to yield so as to engage the shoe over an extended area running transversely of right and left lasts of different shapes, and a hold-'down for clamping the shoe against said rest. y f

2. In a lasting machine, a rest upon which to clamp the toe of the shoe at the tip seam -to hold theseam from displacement, said rest comprising a block'of'resilient material -having an approximately flat toe engaging face and provided under said face with a recess extending throughfthe block from 'fronti to back, and suitably located to enable the .toe to be sunk into said face so that the toeY will engage an extendedarea thereof.'v 1

3. In a lasting machine, means to. hold Vthe tip seam of a shoev against displacement --duringthe lasting operation, comprising a -toe rest land a hold-down'between which the toe" is clamped 'at or adjacent to the tip seam, said toe-rest comprising. ,a rubber Y- pad and a box in'which'the lower portion of saidpad is conned, the pad being provided with a `recess to permit`deformation of the pad into said recess ywhen hold-downr 'pressureis applied 'to' the shoe on the pad and to allow amoreextended. area of the pad inthe direction *of the tip seamY to 1,05 contactl with thel shoe.

4. A toepad for lasting machines comprising a block of yielding material having a cavity" formed in the center portion thereof to increase' the yieldingy capacity of that 110 portion-fand interchangeablemeans located 1in said'cavity for controlling the yielding quality of the central portion of the pad.

5. A toe pad for lastingl machines comprising 'a' segmental block of rubber, a 115 i' cavity formed in the central portion of the pad 'and Yextending laterally of the shoe toward the'ends 'of the pad, and means for restoring to the shoe'engaging face' of the pad at its'central'vportion a portion ofthe 120 resistance to compression removedby the formation of the cavity.

6. In a lasting machine, a toe'restv for the last'Y comprising a support and V a'pad `consisting of a block'of .yielding material 125 -provided with fa recess under that portion of its top lface which yis to.' be engaged by. 1 the vthickest part'of the'last, and a spring f arranged vin Ysaid recess to rbe cbmpressed 7. Ina lasting machine, a toe rest for cess, Said pad also having a socket for-the the last comprising a support and a pad spring extending through the lower Wall 10 consisting of a' block of yielding material of the recess to permit the Spring to rest provided with a recess under that portion on the pad support. of its top face Which is to be engaged by In testimony whereof I have signed my the thickest part of the last, a helical spring name to this specification. arranged in said recess, and a cap plate 1 for the spring in the upper' Wall of the re- JOHN J. DOLAN.

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

v Washington, D. C.

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