Connect public, paid and private patent data with Google Patents Public Datasets

Manufacture of wooden articles

Download PDF

Info

Publication number
US1480658A
US1480658A US39979620A US1480658A US 1480658 A US1480658 A US 1480658A US 39979620 A US39979620 A US 39979620A US 1480658 A US1480658 A US 1480658A
Authority
US
Grant status
Grant
Patent type
Prior art keywords
last
block
compression
lasts
wood
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
William F Bostock
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Emhart Enterprises Corp
Original Assignee
Emhart Enterprises Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27MWORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/02Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by compressing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27MWORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M3/00Manufacture or reconditioning of specific semi-finished or finished articles
    • B27M3/30Manufacture or reconditioning of specific semi-finished or finished articles of bobbins

Description

Jan. 15, 1924. 1,480,658

'W. F. BOSTQCK MANUFACTURE OF WOODEN ARTICLES Filed July 29. 1920 Patented Jan. l5, 1924.

UNITED STATES PATENT OFFHQE.

WILLIAM F. BOSTOCK, OE BRAINTREE, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE- MACHINERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MANUFACTURE OF WOODEN ARTICLES.

To all whom it may concern:

Be it known that l, WILLIAM F. BOSTOCK, a citizen of the United States, residing at Braintree, in the county of Norfolk and 'State of Massachusetts, have invented certain Improvements in the Manufacture of Wooden Articles, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to the manufacture of Wooden articles, and particularly the invention is set forth with relation to the manufacture of lasts for boots and shoes, although it is not so limited in various aspects.

Shoe lasts are generally turned in a last lathe from blocks of hard wood, generally maple, with the grain running lengthwise of the last and the convex surfaces of the annular rings toward the bottom of the last. It is found that when the lasts are subjected to stress such as that of the heeling machine in the operation of nailing heels upon the shoes carried by-the lasts, the heel portions of the last are frequently cracked, split or even shattered by the operation' It is an object of the present invention to avoid this and other difiiculties by providing lasts which, among other, improved qualities, shall be amply strong to resist the heeling machine blow without sacrificing to a prejudicial extent the advantages of lightness and convenience in handling and cheapness of manufacture.

I have found that lasts are much more resistant to shocks of the kind described and in other respects of improved quality ifthe wood of which they are composed has been compacted andrendered dense by pressure. Accordingly, the present invention contemplates the substantial compression, preferably before manufacture, of wood used in the .making of objects in which peculiar strength and firmness is requisite.

In this aspect of the inventioml contemplate, in particular, the compression of wood such as the wood from which the heel portions of shoe lasts are made, or if desired, of the wood from which the entire lasts or other article is made. I prefer to effect this compression before the last is turned,

thus avoiding any change in 'shape consequent on the compression.

A feature of, the invention consists in a last or last-block having its fibers condensed and compacted by pressure. Another feature of the im'ention consists in novel means for effecting the desired compression. Preferably a box-like structure arranged to support the wood firmly at the sides is used, in combination with a plunger arranged to effect the compression.

These and other features of the invention comprising certain combinations and ar rangements of parts will be understood from the. following description of a preferred embodiment thereof selected for purposes of illustration and shown in the accompanying drawings, in which,

Figure 1 is a. cross-section of a rough last block before compression.

Fig. 2 illustrates the compressing operation.

Fig. 3 is a cross-section ofthe same last block after compression, and

Fig. 4 illustrates the manufacture of the last from the compressed block.

The rough last block, preferably reduced to rectangular form, is shown in Fig. 1. The block is placed in a strong metallic frame 10 comprising two separabl side pieces 12 and 14 which may be fastened together in horizontal cross-section as the last block and opening in the frame is arranged at the end of a plunger 24 operating in a sleeve 26 and arranged in connection with a power operated press so that an adequately great compression can be applied by lowering it upon the last block 18. The last block is compressed to adesired degree (I have found that a compression to less than of the original bulk can be used with entirely beneficial results) and the last block is then removed from the frame by loosening the bolts 16, if necessary; The block will then appear as shown in Fig. 3, and i have found that it exhibits no spontaneous tendency to increase in volume. It is then placed 'in a last lathe in the manner well understood to workers in this art and a last 26 is turned from it.

I have found that lasts made in this man-' ner are much stronger and able to resist better the blow of the heeling machine than lasts made of uncompressed wood. The characteristicsof the wood are found to be substantially altered by the compression. It'becomesharder, denser, and firmer. The increase in weight due to the compression is small and causes little inconvenience. The compression has been found to inflict no damage whatever upon the wood provided it is adequately laterally supported as by the 7 frame 10.

While I have shown an entire last block as being compressed by the plunger 22, it is of course not necessary that the entire block be treated in this way as the forepart of the last has been found to wear satisfactorily under the stresses of machine shoemaking without this treatment and treatment of the block from which the heel part is made by means of the present invention is all that is necessary to produce a thoroughly strong and satisfacto last. The procedure, of manufactu t e last as a whole is, however, simpler 1n case the entire block is compressed and the last out therefrom in the ordinary llaving described my invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. That improvement in the art of manufacturing lasts which consists in compress- V ing the block normally to it annual layers while holding it fir y supported tangentially thereto, placing it in a last lathe and turning it to the desired shape.

2. A wooden last block havin its bottom out from the periphery of the le having its fibers condensed and com acted by pres- WILLIAM F. BOSTOCK.

US1480658A 1920-07-29 1920-07-29 Manufacture of wooden articles Expired - Lifetime US1480658A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US1480658A US1480658A (en) 1920-07-29 1920-07-29 Manufacture of wooden articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1480658A US1480658A (en) 1920-07-29 1920-07-29 Manufacture of wooden articles

Publications (1)

Publication Number Publication Date
US1480658A true US1480658A (en) 1924-01-15

Family

ID=23581000

Family Applications (1)

Application Number Title Priority Date Filing Date
US1480658A Expired - Lifetime US1480658A (en) 1920-07-29 1920-07-29 Manufacture of wooden articles

Country Status (1)

Country Link
US (1) US1480658A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672006A (en) * 1986-03-28 1987-06-09 Mcgraw David W Tree processing and wood products system
US5343913A (en) * 1989-12-25 1994-09-06 Hisaka Works Limited Wood treating method and apparatus
US5678618A (en) * 1993-11-18 1997-10-21 Lindhe; Curt Process for producing hard elements of wood
US5685353A (en) * 1993-05-18 1997-11-11 Valtion Teknillinen Tutkimuskeskus Method for compressive shape-drying of wood
US5904194A (en) * 1995-07-07 1999-05-18 Castwall; Lennart Method for producing a hard wood element
US6047751A (en) * 1998-03-11 2000-04-11 An; Sun-Tae Method and apparatus for increasing the hardness and intensity of wood
US20080308184A1 (en) * 2007-06-15 2008-12-18 Gill William H Apparatus for hardening the head area of a wooden baseball bat
US20100180987A1 (en) * 2009-01-16 2010-07-22 Weyerhaeuser Nr Company Methods for Enhancing Hardness and Dimensional Stability of a Wood Element and Wood Product Having Enhanced Hardness

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672006A (en) * 1986-03-28 1987-06-09 Mcgraw David W Tree processing and wood products system
US5343913A (en) * 1989-12-25 1994-09-06 Hisaka Works Limited Wood treating method and apparatus
US5685353A (en) * 1993-05-18 1997-11-11 Valtion Teknillinen Tutkimuskeskus Method for compressive shape-drying of wood
US5678618A (en) * 1993-11-18 1997-10-21 Lindhe; Curt Process for producing hard elements of wood
US5904194A (en) * 1995-07-07 1999-05-18 Castwall; Lennart Method for producing a hard wood element
US6047751A (en) * 1998-03-11 2000-04-11 An; Sun-Tae Method and apparatus for increasing the hardness and intensity of wood
US20080308184A1 (en) * 2007-06-15 2008-12-18 Gill William H Apparatus for hardening the head area of a wooden baseball bat
US7841372B2 (en) 2007-06-15 2010-11-30 Gill William H Apparatus for hardening the head area of a wooden baseball bat
US20100180987A1 (en) * 2009-01-16 2010-07-22 Weyerhaeuser Nr Company Methods for Enhancing Hardness and Dimensional Stability of a Wood Element and Wood Product Having Enhanced Hardness
US7836924B2 (en) * 2009-01-16 2010-11-23 Weyerhaeuser NR Comp½any Methods for enhancing hardness and dimensional stability of a wood element and wood product having enhanced hardness

Similar Documents

Publication Publication Date Title
US3327334A (en) Method of manufacturing outsoles
US2275720A (en) Shoe outsole
US1214666A (en) Boot and shoe sole.
US2574582A (en) Footwear with sponge rubber sole indirectly connected to the upper
US1148584A (en) Method of utilizing scrap pieces of material.
US2371322A (en) Shank stiffener and method of
US2151554A (en) Armored shoe
US1575813A (en) Method of side lasting boots, shoes, and slippers
US2826832A (en) Tread member for a shoe
US2654606A (en) Laminated bowling pin
GB117176A (en) Improvements in Metal Welded Boots and Shoes.
US3863284A (en) Last and apparatus for removing footwear therefrom
US3103024A (en) Method of making beaded welting
US1370799A (en) Arch-supporting insole
US2208330A (en) Shoe
US3123519A (en) Molded pulp egg carton method
US4233753A (en) Method for preventing the splitting of logs during drying
US1677013A (en) Compound rubber tread
US1682504A (en) Racket and art of manufacture thereof
US1773242A (en) Shoe with interchangeable sole and heel
US927287A (en) Process for making rubber footwear.
US2202750A (en) Means for manufacturing rubber soled footwear
US3237320A (en) Prefinished heel with fibrous core
US2174647A (en) Shoe sole
US2128919A (en) Treatment of fruits, particularly dates