15,315 research outputs found
Do Patent Pools Encourage Innovation? Evidence from the 19th-Century Sewing Machine Industry
No full textMembers of a patent pool agree to use a set of patents as if they were jointly owned by all members and license them as a package to other firms. Regulators favor pools as a means to encourage innovation: Pools are expected to reduce litigation risks for their members and lower license fees and transactions costs for other firms. This paper uses the example of the first patent pool in U.S. history, the Sewing Machine Combination (1856-1877) to perform the first empirical test of the effects of a patent pool on innovation. Contrary to theoretical predictions, the sewing machine pool appears to have discouraged patenting and innovation, in particular for the members of the pool. Data on stitches per minute, as an objectively quantifiable measure of innovation, confirm these findings. Innovation for both members and outside firms slowed as soon as the pool had been established and resumed only after it had dissolved.
Sewing the Self: Needlework, Femininity and Domesticity In Interwar Britain
No full textThis thesis looks at design practice as a method of investigating the relationship between design and identity in interwar Britain; in particular it considers design from the perspective of practice, not solely as the final object or the story of the maker. For it is in the process of making that the varied aspects of design as it is practiced are configured to create the greatest impact on everyday life. This research proposes that the quest to construct one’s identity, in particular a feminine identity, can be demonstrated by the making of goods and objects through the traditionally feminine practice of sewing and needlework, specifically those made at home. It argues that home sewing, as an understudied everyday practice, was intrinsically bound up with ideas of who women were, how they imagined themselves, and how their feminine identities were represented. Between the wars, home-sewing was an integral daily practice for middle-class women that left indelible memories of not only the items made, but of specific types of sewing and design practice, who it was made for and how it was used. It also explores these specific practices during a period of enormous change- culturally, technologically and politically – and particularly important for this study are the themes of femininity and domesticity, as well as the boundaries of private and public life in relation to modernity. Methodologically it focuses on sewing practices by utilizing mass media, specific objects and oral histories to elucidate this. This thesis considers the breadth and extent of home sewing as an everyday practice aligning individual narratives, original source material and theoretical analysis
Ghost sign for English Sewing Cotton Co. Ltd. on East Park Road, 2024.
No full textGhost sign for English Sewing Cotton Co. Ltd. The sign reads: 'Thread Sales ... English Sewing...'.
This likely refers to the English Sewing Cotton Co. which was registered in 1897 after the combination of 14 different sewing firms across England, including the Leicester-based Crown Cotton Mills which was founded in 1820 by J. T. Raworth. According to the Science Museum Group, the union of the 14 firms was 'established in order to unite the principal English firms and companies engaged in the manufacture of sewing, crochet, knitting, mending and other cottons as well as subsidiary businesses engaged in cotton spinning, doubling, dyeing, bleaching and polishing'. After a series of further acquisitions and mergers, the company was renamed Tootal Ltd. before being acquired by Coats Viyella
Ghost sign for English Sewing Cotton Co. Ltd. on East Park Road, 2015.
No full textGhost sign for English Sewing Cotton Co. Ltd. The sign reads: 'Thread Sales ... English Sewing...'.
This likely refers to the English Sewing Cotton Co. which was registered in 1897 after the combination of 14 different sewing firms across England, including the Leicester-based Crown Cotton Mills which was founded in 1820 by J. T. Raworth. According to the Science Museum Group, the union of the 14 firms was 'established in order to unite the principal English firms and companies engaged in the manufacture of sewing, crochet, knitting, mending and other cottons as well as subsidiary businesses engaged in cotton spinning, doubling, dyeing, bleaching and polishing'. After a series of further acquisitions and mergers, the company was renamed Tootal Ltd. before being acquired by Coats Viyella
Effect of modifications of dual acid‐etched implant surfaces on periimplant bone formation. Part II: calcium phosphate coatings
No full textThe aim of the present study was to test the hypothesis that calcium phosphate coatings of dual acid-etched surfaces (DAEs) can improve periimplant bone regeneration. Ten adult female foxhounds received experimental titanium screw implants in the mandible 3 months after removal of all premolar teeth. Five types of surface states were evaluated in each animal: (i) implants with a machined surface (MS) (Control 1); (ii) implants with a DAE (Control 2); (iii) implants with a DAE coated with collagen I (Control 3); (iv) implants with a DAE with mineralized collagen I; and (v) implants with a DAE with a hydroxylapatite (HA) coating. Periimplant bone regeneration was assessed by histomorphometry after 1 and 3 months in five dogs each by measuring bone implant contact (BIC) and the volume density of the newly formed periimplant bone (BVD). After 1 month, mean BIC of experimental implants did not differ significantly from implants with DAE and collagen-coated surfaces, but was significantly higher than the MS implants. BVD was enhanced significantly only in implants with mineralized collagen coating compared with DAE and collagen-coated controls. After 3 months, the mean values of BIC had increased significantly in the group of implants with HA and mineralized collagen coating but were not significantly different from implants with DAE and collagen-coated surfaces. The same held true for the mean BVD values. In conclusion, the present study could not verify the hypothesis that calcium phosphate coatings of DAEs in the present form enhanced periimplant bone formation compared with the DAE surface alone. To cite this article:Schliephake H, Aref A, Scharnweber D, Ro ss ler S, Sewing A. Effect of modifications of dual acid-etched implant surfaces on periimplant bone formation: part II. Calcium phosphate coatings.Clin. Oral Impl. Res. 20, 2009; 38-44.German Federal Ministry of Education and Research BMBF [03N4021
Sewing Samples
No full textPhotograph - Sewing samples from Fanny Makepeace Jameson's time in school and a small spool of thread (2 pages)Artifact
Sewing Patterns
No full textPhotograph - Homemade sewing patterns cut from newspapers and a copied transfer pattern of flowers for embroidery, Byemoor, AB (4 pages
Sewing
No full textAfrican American women in a sewing class.Although some of the descriptions of photographs in this collection have been altered for clarity, a majority of the descriptions are transcribed verbatim from the back of the photographs and reflect the language of those times
Margaret Woodruff’s Needle Book for Sewing
No full textMargaret Woodruff’s needle book for sewing. This is a miniature needle book complete with
needles, pins and scissors. It is an 8 cm. x 7 cm. cloth covered booklet with a tiny flowers pinned
to the front cover. Margaret Woodruff is written inside the back cover, n.d
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