US1779081A - Shoe press - Google Patents

Description

Oct. 21, 1930. GQC. 'B'AIRD 1,779,081

' SHOE PRESS I Filed June 12, 1928 2 Sheets-Shet 1 fF fgml.

INVENTOR Gowe CLBQZFQ ATTORNEY Oct. 21, 1930.

G. c. BAIRDY SHOE: PRESS 2 Slw ets-Sheetv 2 Filed Jime 12, 1928 INVEN I'OR r Gorje afiacna',

ATTORNEY Patented Oct. 21, 1930 PATENT OFFICE GEORGE C. BAIRD, OF LOS ANGELES, CALIFORNIA SHOE PRESS Application 'flled June 12,

,My invention relates to shoe presses for use in the repair of shoes, as well as in the original manufacture thereof, for pressing the edge portion of the shoe upper against the sole for the purpose of securing the parts together in the usual well-known manner.

An important object of the invention resides in the provision of means whereby the pressing operation can be practised with satisfactory and beneficial e fiect and in ways that will bring about or establish consistent pressures against the parts operated upon.

A further object of the invention is to provide novel and positively acting means which will adapt the pressing elements of the structure to the shape of the .shoe, particularly at the front and rear portions of the shoe, where, so frequently, it is difficult to effect a proper binding action between the sole and the upper.

A still further object of the invention is to provide a press having pressing means that I will permit operations to be performed on shoes of all sizes, from the very smallest to the largest of shoes ordinarily worn.

A still further object of the invention is to provide a novel tilting and longitudinally shifting presser and means in association therewith that can be shifted in a longitudinal direction with respect to the sole of the shoe and pressed uniformly against the parts operated upon. g

A still further object of the invention is to provide a structure of this character including a flexible table with means for tilting same, and a superposed elastic cushion mounted upon the table and constructed and provided with means whereby a portion thereof may be tilted with respect to the presser plate.

In'the drawings,

Figure l is a longitudinal section through the device;

Figure 2 is a bottom plan view thereof;

Figure 3 is a perspective view of the tilt ing presser;

Figure at is a perspective iew of a number 7 of the interchangeable pressing plates;

Figure 5 is a sectional view through a portion of the elastic pad, showing a part thereof mechanically forced to a position beyond 1928. Serial No. 284,780.

its normal plane where it will adapt itself to the overlying presser plate;

Figure 6 is a detail view indicating the action of one of the elevating cams of the flexible table;

Figure 7 is a sectional perspective view of one element of the flexible table and its coacting cam.

In carrying the invention into practice, use is made of a frame 10 having a base plate 11 which may be secured by suitable fastenings, not shown, to a worktable or other supporting surface. The frame is provided. pref erably with parallel spaced apart vertical branches or limbs 12 connected together at their upper ends by a cross bar 13 which is formed with a medially positioned bearing or sleeve 14 which threaded accommodates a vertically adjustable jack screw 15 whose end above the aforestated bearing is provided with a hand wheel so that the. screw may be forced either upward or downward with respect to the base plate 11.

Carried by the base plate 11 is a flexible table 17, the same embodying 'an intermediate section 18, a rear section 19 and a front section 20, the latter and former having pivotal connection at 21 to the front and rear edges, respectively, of the intermediate section 19, said connections serving to permit the front and rear sections 19 and 20 to be tilted in vertical directions. The base plate 11 is formed at its front and rear portions with straight surfaces or shoulders 22 and, as illustrated', these shoulders are respectively adapted to co-act with lifting cams 23, one of which is provided for each of the aforementioned front and rear sections 20 and 19. As these lifting cams are identical in construction, a description of one will suffice for the other.

Referring to the front section 20, it will be observed that the lifting cam 23 thereof is mounted on a vertical pivot. The upper surface of the cam is flat and formed therein is an'arcuate series of cavities 24, in the path of which said cavities is disposed a yielding clutch or latch element 25, in the form of a steel ball. The cam is extended for an appreciable distance beyond its pivot to constitute a manipulating lever 26, whereby it can be turned on its pivot and the ball latch made to present itself. in a selected one of the cavities 24:, thus holding the cam in a position of selected adjustment. The head of the cam is formed with an-arcuate surface 27 which is adapted to co-act with the adjacent shoulder 22 of the intermediate table section 18. lln this manner, it manifestly follows that when the cam is turned on its axis there will occur through a contact of the arcuate surface ofthe cam with the straight shoulder 22 a tilting of the cam to thereby bring about a corresponding tilting of the front section of the table. In this manner, I am able to elevate the front and rear sections of the table in order that the front and rear angles of the table can be changed to conform with the correspondin angles of the pressing plate, which latter T will refer to presently.

Mounted on the table 17 is an elastic pad 28 formed preferably of sponge rubber and of a thickness that will enable it to yield properly when pressures are applied thereto. The heel edge of this pad is split transversely at 29, so that in effect there are two correlated port ons 30 and 31 of the pad between which a wedge 32 may be applied to thereby effect,

supplemental adjustment of the rear end of the pad over the adjustment afforded by the functioning of the rear section 19 of the table. I am thereby permitted to force the rear end of the pad into uniform contact with the sole of the shoe, pressing it firmly against the edge of the shoe upper during the process of cementing the parts together. The pad 28 is tied down to the rear and front sections 19 and 20 of the table by looping wires through the pad and engaging the wires with the rear and front sections of the table, as

clearly illustrated. The pad 28 is provided with a top facing of rubber 33 which is of a different texture than that of the foundation of the pad because of the fact that its upper is more abused. It is employed primarily for the purpose of preventing premature disintegration of the sponge rubber foundation.

Separable from the structure is .a tilting longitudinal presser 34!: having a rocking arm 35 formed with a depression or cavity 36 near its free, end that will receive the lower v end of the jack screw 15. This presser is formed with an angularly disposed bar 37 whose extremity is provided at its sides with bearing pins 38 adapted to removably rest 'in the saddles 39 of either one of the pressplied thGIQtOo uniform pressure, the jack screw exerting its force against the presser 34: to make this possible.

I have described the details of construction 'of the invention, and it is believed that the mode of using same will be apparent to one skilled in the art, but, for the sake of assurance, it is stated thatthe upper and its sole are supported over the pad 28 and they are properly related to each other in the positions thatwould precede an intended action to press these parts firmly together. The desired plate 39 or 40 or one of any other selected size, is now placed within the shoe and when this is accomplished the presser is associated with the jack screw and with the said plate and the screw turned to bring about a pressing of the plate against the shoe. In

the event that the angles are in any way peculiar, or not regular in one shoe with respect to another, and there should be any reason for insuring evenness of contact of the parts, the adjustable table sections 19 and 20-can be tilted and made to co-act with the pressing plate, and adapt themselves to the toe and shank angles" The pressing plate can be shifted longitudinally with respect to the sole, and even though one might be inclined to be careless in the application of the plate in the shoe, this in no wise will afi'ect the uniformity of clamping action, as will be brought about by a turning of the jack screw. ll claim as my invention: 1. A shoe press including a work table having tilting front and rear sections, means for tilting said sections, and pressing mechanism located above the table and having a pressing plate correlated to the table to permit the sole ofa shoe to be interposed between the latter and the former, the pressing mechanism embodying a presser pivotally mounted on and in detachable association with thesaid plat and means for exerting pressure upon the plate through the medium of said presser.

2. A shoe press including a work table having tilting front and rear sections, means for tilting said sections, and pressing mechanism located above the table and having a pressing plate correlated to the table to permit the sole of a shoe to be interposed between the latter and the former, the pressing mechanism embodying a presser pivotally mounted on and in detachable association with the said plate, and means for exerting pressure upon the plate through the medium of said presser and comprising a jack screw supported for vertical adjustment in a position abovejzhe presser and having detachable connection therewith.

3. A shoe press comprising a frame having a work table, an elastic cushion surfacing the table, a presser overlying the table, screw means in the frame for moving the presser in one direction, a plate separable from the presser andvassoci'ated with the latter for relative pivotal movement about an axis and adapted to be positioned over the table, so that a shoe sole can be interposed between the table and the plate, and means to tilt portions of the cushion with respect to the plate.

4:. A shoe press comprisin a frame having a work table, an elastic cushion surfacing the table, a presser overlying the table, screw means in the frame for movin the presser in one direction, a plate separa 1e from the screw means and adapted to be positioned over the table, so that a shoe sole can be interposed between the table and the plate, and means to tilt portions of the cushion with respect to the plate, the cushion being split horizontally to substantially provide same with a number of-plies, and the said tilting means comprising 'a wedge adapted to be in-- serted between the plies to spread same apart.

5. A shoe press comprising a work table, and pressing mechanism having a pressing plate so correlated to the table as to permit the sole of a shoe to be interposed between the plate and table, the pressing mechanism the plate and table, the Eressmg mechanism including a presser mem er detachably associated with the presser plate and mounted thereon for relative pivotal movement about a definite axis, andmeans for exertin pressure upon the presser plate through t e medium of the presser member. I

-- 7. A shoe press comprising a work table,

I and'pressing mechanism having a pressing plate so correlated "to the table as .to permit the sole-of a shoe to be interposed between the 1 I plate and table, the presser plate having saddles, and the pressing mechanism including a presser mem er provlded with bearing pins for exerting pressure upon the presser plate through the medium of the presser member. 8. In a shoe press, a work table having an removably seating in said saddles, and means intermediate section and tiltable front and rear sections, and cams rotatably mounted on the front and rear sections and so engageable with the intermediate section as to effect tilting of the front and rear sections in response to rotation of the cams.

9. In a shoe press, a work table having a tiltable section, and a cam rotatably mounted on the tiltable section and so engageable with a portion of the work table as to cause tilting of 'saidisection in response to rotation'of the cam; i

10. In a shoe press, a work table having a tiltable section, a cam rotatably mounted on the'tiltable section andso engageable with a portion. of the work table as to, cause tilting of said section in response to rotation. of the cam, and means by which the cam can be manually rotated.

11. In a shoe press, a work table having a tiltable section, a cam rotatably mounted on the tiltable section and so engageable with a portion of the work table as to cause tilting of said section in responseto rotation of the cam, and means for-releasably retaining the cam in' a definite position of rotatable adjustment.

' GEORGE O. BAIRD.

Images