Scope and Contents
The papers include correspondence, photographs, notes, drawings, sketches, patents, litigation records, and printed materials, primarily documenting Adler's work with sewing machine technology. The papers provide insight into an independent inventor's process of invention and Japanese work culture during the post-World War II period.
Series 1, Personal Materials, 1920s-1950s and undated
consists primarily of high school chemistry and biology notes, business cards, photographs, speeches, and writings of Sol Adler. The photographs contain one black-and-white portrait of Adler, November 1958, and two negatives of him from the nineteen teens; and one scanned copy of a photograph, circa the 1920s of Sol Adler with his children, R. Michael and Diane Zoe Adler. There is a small booklet,
Agreement between Manufacturers Machine and Tool Co., Inc., and Amalgamated Machine and Instrument Local No. 475
from 1941. Adler worked for Manufacturers Machine and Tool Co., Inc.
Series 2, Inventions,
is divided into two subseries: Subseries 1, Other, 1919-1980 and undated, and Subseries 2, Sewing Machines, 1938-1962 and undated. Arranged chronologically, both subseries highlight Adler's inventive work. While the primary focus of Adler's invention work was on sewing machines, his interests were broad.
Subseries 2.1, Other Inventions, 1919-1980 and undated
, contains documentation in the form of drawings and sketches, photographs, correspondence, and patents. Overall, the documentation is uneven. The inventions include a dividing head (a specialized tool that allows a workpiece to be easily and precisely rotated to preset angles or circular divisions); decorative window treatment; telescoping umbrella; can opener; question/answer machine; correlating device; radio station recording device; receptacle tap; fountain pen; television projection device; combined ash tray and cigarette holder; automatic machine gun; juice blender; thermonuclear idea; apparatus for producing pile fabric; an extensible, retractable and concealable table; and textile machinery.
Only some of Adler's inventions were patented. However, many of his ideas were well documented through drawings or descriptive text. In some instances prototypes were built.
question and answer machine
, 1939, was approximately three feet by four feet and was powered by a battery, the device was intended for educational use by children and adults. It used interchangeable answer cards on a broad range of subjects and informed the user of a correct and wrong answer by lights and a buzzer.
, 1942, was designed for automobile use, and it combined driving directions and maps on a roll of paper data mounted on the dashboard. Although patented (US Patent 2,282,843), the device was never manufactured.
radio station recording device
, 1939, was a device to maintain a record of radio stations tuned on a radio receiver during a twenty-four hour period using recording disks.
receptacle tap (Siphon-It)
, 1939, was patented (US Patent 2,184,263). The Siphon-It was designed to fit any size bottle, can, or the like containing fluids without removing the bottle cap. The "tap" punctured the bottle cap and was then turned like a screw several times. It allowed the contents under pressure to not lose carbonation and be poured easily.
combined ash tray and cigarette holder and lighter
, 1951, was Adler's only design patent (US Patent Des. 163,984). Purely ornamental, the tray would light and hold a cigarette.
automatic machine gun
, 1952, was conceived of by Adler and his son R. Michael Adler. The drawings and accompanying narrative text detail a method for cooling the gun through the use of an automatically operated gas turbine centrifugal air compressor and a gun of simple design with few parts and capable of an extremely high rate of fire. Adler submitted his drawings and text to the United States Army Ordance Department at the Pentagon, but it was not manufactured.
thermonuclear fusion proposal
, a technical paper written in 1960, was never realized. The paper, titled "Attempt to Utilize the Concentrated Magnetic Field Around a Pinched Plasma Column as the Focal Point for Particle Acceleration," details through text and schematics Adler's ideas about a thermonuclear reactor. Additionally, there is correspondence, journal articles, newspaper articles, and a notebook with notes from other publications and some loose drawings related to thermonuclear issues.
apparatus for producing pile fabric
(US Patent 3,309,252), was patented in 1967. The intention of the apparatus was to create a method for producing carpets and rugs in a fast, practical, and inexpensive way.
Adler's work with
non-woven textiles and fabrics
(see US Patent 3,250,655) is well documented through correspondence, drawings, notes, fabric samples, and photographs. Adler founded the Adler Process Corporation in the 1960s as a research and development organization specializing in the development of products for domestic and industrial uses. The corporation also built machinery for the commercial production of the products which included pile fabric (such as carpeting), non-woven fabrics, and leather-like material. A prospectus details the "Adler Process."
Method and apparatus for production of pile carpeting and the like (US Patent 3,424,632, 3,592,374, and 3,655,490)
Subseries 2.2, Sewing machines, 1938-1962 and undated,
consists primarily of documentation about the development of the Pacesetter sewing machine and its predecessors through correspondence, drawings and sketches, photographs, guide manuals, and promotional materials. Adler constructed skeletal aluminum models to better understand the functions and internal mechanisms of sewing machines. Between 1940 and 1948, he designed and constructed a sewing machine prototype, which he called his "Parent Machine." The Parent Machine would become known as the Pacesetter. Seven patents were awarded for the novel mechanisms contained within this prototype (US Patent 2,561,643), the most notable being for a compact sewing machine that could expand to a full-sized machine. Additional sewing machine inventions include the needleless sewing machine; a zig-zag sewing machine, and an attachment for a zig-zag sewing machine (US Patent 3,016,030).
While working as an engineer for the Brother International Corporation in Japan in the early 1950s, Adler developed the Pacesetter sewing machine. This portable machine was designed to meet the rapidly growing popularity of multiple decorative and embroidery patterns. A selector dial, which Adler called the "Wishing Dial," controlled sixteen internal cams, multiple cam selectors and followers to automatically sew thirty different basic decorative stitch patterns. Since the Pacesetter could sew both zigzag and straight stitches, varying the width and length of the basic patterns made it possible to create thousands of decorative variations. Adler introduced the Pacesetter sewing machine at the Independent Sewing Machine Dealers Show in New York, July 18, 1955.
Series 3: Brother International Corporation, 1954-1959 and undated
Started in 1908 by Kanekichi Yasui, the Yasui Sewing Machine Company manufactured and repaired sewing machines. The company was later renamed Yasui Brother Sewing Machine Company by Masayoshi Yasui, the eldest of Kanekichi's ten children, who inherited the company. The new name reflected the involvement and spirit of cooperation of other "brothers" in the Yasui family.
In 1934, the Yasui brothers liquidated the Yasui Brother Sewing Machine Company and created the Nippon Sewing Machine Company in Nagoya, Japan. Nippon emerged in response to a Japanese sewing machine market dominated by imported products, and it began mass producing industrial sewing machines. In 1941, Brother Sales, Ltd. was established as a sales outlet for the Japanese market, and in 1954 Brother International Corporation (BIC) was created as an exporting company with offices established in New York City. The company actively promoted exporting in advance of other Japanese companies.
Adler joined BIC in 1954 as a consultant for their product design and development work. This work was previously done in-house by design and engineering staff, so Adler, an American, was charting new territory. The materials in this series consist of corporate histories, and annual report, correspondence, product literature, conference materials, and notebooks maintained by Adler. The latter constitutes the bulk of the material along with the correspondence.
The "conference" materials document a meeting Adler attended, presumably in Japan in 1957. The file contains detailed notes about product marketing and production factors. A flow chart for "product coordinating factors" outlines the motivations, idea sources, management control, and execution of an idea generally.
The correspondence, 1954-1958, consists of letters and inter-company communications (memorandum), patents and drawings between Sol Adler, Max Hugel and the legal firm of, Kane, Dalsmier and Kane of New York. The correspondence relates almost exclusively to patenting matters, especially by Adler and legal matters involving Singer Sewing Manufacturing Company alleging that Brother International infringed on certain Singer-owned patents.
The notebooks of Solomon Adler, approximately 1951-1958, consists primarily of materials documenting Adler's work in Japan on sewing machines. The materials were assembled by Adler and titled "notebook." Some of the materials are three hole punched (indicating they may have been in a three-ring notebook) and are both handwritten and typescript. Also included are chronologies of his work; translations of Japanese words into English; drawings in pencil on tracing paper; sketches in pencil on scrap paper and letterhead; detailed notes about mechanisms and methods of sewing machine operation; business cards; comparative data for sewing machines; and correspondence.
Of note is the "digest" or chronology of events from 1958 to 1959 maintained by Adler to detail the alleged patent infringement of BIC on Singer Sewing machine patents. The digest also notes the value, author of a document, to whom it was sent, date, and a brief description. Adler created a ranking system for his digest, assigning different values, very important, urgent, important, and general. He also compiled a chart of competitor sewing machines by brand name. Many of the Japanese documents--patents and drawings--bear Adler's "chop" or rubber stamp with Japanese characters for his surname.
The Litigation Materials, 1952-1961 and undated, consists of documents (numbered exhibits) assembled by Adler for use in litigation against Brother International Corporation (BIC). The exhibits were used as documentary evidence in court, and the materials are primarily typescript notes and correspondence, newspaper clippings, articles, technical drawings by Adler, patents, photographs and some product literature detailing aspects of the BIC sewing machines.
In 1958, Singer Sewing Machine Company filed a lawsuit against Nippon Sewing Machine Company for patent infringement by BIC's Pacesetter and Select-O-Matic sewing machines. Adler, on behalf of Nippon, conducted extensive patent research into the allegations, working with BIC attorneys in New York as well as creating new sewing machine designs to overcome Singer's claims. In 1959, Singer filed another lawsuit alleging that Nippon was violating United States customs laws by shipping automatic zigzag sewing machines to the United States, which were alleged to infringe on Singer patents. Correspondence related to this patent infringement can be found in Series 3: Brother International Corporation.
Adler returned to the United States in April of 1959 as the representative for Nippon and the Japanese sewing machine industry to help prepare the case and act as a consultant. BIC and Singer representatives appeared before the United States Tariff Commission (USTC). Adler officially testified on behalf of BIC, explaining the three angle cam structure difference between the Singer #401 sewing machine and imported Japanese sewing machines. Adler's testimony was successful, and with patent problems resolved, Adler resigned from BIC in July of 1959 and commenced a long negotiation with the company for financial compensation for his invention work.
Series 5, Publications, 1953-1967
, consists of select issues of the
New Japan Sewing Machine News
, which followed developments in the Japanese sewing machine industry and other publications featuring articles and brief pieces about sewing machines in general.
(http://welcome.brother.com/hk-en/about-us/history.html last accessed on March 24, 2011)