An archery bow having a riser capable of being gripped by an archer from which is centilevered upper and lower spring members. Bow limbs are pivotably suspended from the free end of each spring member at the midsection thereof so that each limb hangs on the archer's side of the bow. A bow string is attached to upwardly extended tips of the limbs. Cams, which are rotatably supported from the top and bottom sections of the riser, are connected to the lower portion of each limb by means of a contro...

A novel water-soluble peptide designated herein as Bu-2517 is produced by fermentation of Empedobacter sp. strain G393-B445 (ATCC 31962). The antibiotic exists in a cyclic depsipeptide structure and contains the amino acids D-serine, D-proline, L-proline, D-threo-.beta.-hydroxyaspartic acid, L-threo-.beta.-hydroxyaspartic acid, L-arginine and trans-L-3-hydroxyproline and the residue of the C.sub.14 fatty acid, 3-hydroxytetradecanoic acid. The Bu-2517 antibiotic inhibits the growth of a variety o...

The present invention relates to a platinum compound having the formula ##STR1## wherein R represents hydrogen atom, an alkali metal atom or a lower alkyl group. The platinum compound is effective as an antitumor and antimicrobial drug.

A compound bow includes improved low-rotation cam members eccentrically mounted upon the bow limp tips and each provided with an enlarged main body section, a reduced width intermediate section and an elongated terminal section generally defining an irregular kidney-shaped profile. A single cable groove or track extends continuously around the entire periphery of each cam and is disposed in a single vertical plane such that any stretch of cable extending between the tracks of the two cams will b...

A compound carburetor wherein, in order that, in the course of the transit from the primary side to the secondary side, an air-fuel mixture fed to each cylinder may maintain a uniform air-fuel ratio without causing an air lock and the transit may be made smoothly and definitely, an independent secondary slow-running fuel system is provided for each cylinder and a secondary slow mixture path includes in the course a pipe connected between a carburetor part and manifold part.

The disclosure relates to at least one calcium fluoride optical element used in combination with at least two ordinary crown glass lens elements to greatly reduce secondary spectrum in optical systems.

A compound bow includes a pair of limbs that extend from opposite end portions of a handle member. Each limb has a free end portion which is rotatably and eccentrically mounted on a pulley. A continuous cable is reeved about the pulleys and extends between the free end portions of the limbs. The portion of the cable reeved about the pulleys includes devices for engaging sprockets of the pulleys in a manner to permit adjustments in the draw length and draw weight of the cable. A flexible portion ...

A molding compound is disclosed comprising a diallyl phthalate compound and capsules of water.

Antibiotic C-15003 PND of the formula: ##STR1## wherein R is H or alkanoyl containing not more than 5 carbon atoms is produced by contacting a maytansinoid compound with a culture broth, inclusive of a processed matter derived therefrom, of a microorganism belonging to one of the genera Streptomyces and Chainia which is able to transform said maytansinoid compound into Antibiotic C-15003 PND. Antibiotic C-15003 PND is useful as antitumor, antifungal or antiprotozoal agent.

A compound of Formula (1) or a salt thereof: wherein: J is --OR.sup.4 or --NR.sup.4 R.sup.5 ; R.sup.4 is H or optionally substituted alkyl, aryl or acyl; and R.sup.4 and R.sup.5 taken together with the N atom to which they are attached form a 5- or 6-membered carbocyclic group optionally containing a ring oxygen atom; A is optionally substituted phenylene or optionally substituted naphthylene; Y is a substituted or unsubstituted naphthylene or phenylene ring; R.sup.1 is H or optionally substitut...