Abstract: A portable basketball net assembly which may be easily installed upon and removed from a basketball goal hoop includes a flexible collar which embraces the goal hoop circumference. The extended edges of the collar are selectively joinable as are the opposed ends of the collar to retain the collar in place on the hoop. A net depends from the collar and fully surrounds the hoop when the collar is installed. The edges and ends of the collar are preferably joinable by mating sections of hook-and-eye fabric tape material.

Abstract: A sheet film holder with means to expose a portion of the unused film edge to a logo, copyright notice or other desired media. The top and bottom rear portions of a dual sheet holder are hingedly connected to the rear wall. The central portion of the bottom arm and the connecting member of the side channel are made of light conducting material. An opaque acetate with clear media is secured to the bottom side of the material portion of the arm.When film is in the frame and a slide is secured in position within the rear channel, the film remains unexposed, except for the light which is conducted via the material, through the clear portion of the acetate and to the film edge. This desired media will appear on the film when it is developed.

Abstract: A throwing game consisting of a shuttlecock-like throwing body having a suction cup on its top and a catch plate having a cambered front side and a holding loop on its rear side. The holding loop is insertable and fixable in a clamping device on the rear side. The holding loop is provided with a series of spaced nubs, which allow the size of the loop to be adjusted.

Abstract: An accessory for protecting and holding skis together which includes a top member and a bottom member. The top member is formed of two flexible wings conforming in shape to the shovel of a ski with a receptacle to receive the shovel. The wings are joined usually at their bottom surfaces of their inner walls by a thin flexible bridge. The walls of the wings have openings which are substantially aligned with each other when the wings are folded against themselves. The bottom member also forms a receptacle to receive the tails of the ski and is sized to be received within the openings of the walls of the wings.

Abstract: Compounds of the general formula ##STR1## wherein: X is halogen or trifluoromethyl;R.sub.1 is hydrogen, halogen or trifluoromethyl;R.sub.2 is hydrogen, methyl or hydroxymethyl;R.sub.3 is hydrogen or lower alkyl; andY is methylene, methylene substituted with a lower alkyl or hydroxyl group, sulfinyl, sulfonyl, oxygen or sulfur, exhibit a cerebral protective effect and are applicable to the treatment of cerebral ischaemia and cerebral hypoxia.The compounds may be made by acylating a suitable piperidine or morpholine with the appropriate cinnamoyl chloride, and if necessary oxidizing the reaction product.

Abstract: A method and apparatus for providing for the insulin needs of a diabetic individual utilizes blood flow in the digestive tract as the operative variable. Such blood flow is monitored and when deviations from a base level are sensed insulin is provided in measured amounts. The blood flow may be monitored on a continuous basis to provide real-time analysis and delivery. The system may be under microprocessor control, and may include recording means to allow a record of blood flow and insulin delivery to be made either for insulin need computation or for later review.

Abstract: Mitomycin compound having potent antitumour activity having the formula: ##STR1## wherein ##STR2## (wherein Ra, Rb and Rc each independently represent lower alkyl, cycloalkyl having 3-7 carbon atoms or phenyl; or Ra and Rb are bonded together to form a poly-methylene group having 2-5 carbon atoms);one of R.sub.1 and R.sub.2 represents carbamoyloxymethyl and the other represents hydrogen; or R.sub.1 and R.sub.2 may together form an exocyclic methylene group;and Y and Z each independently represents hydrogen or methyl.

Abstract: Apparatus for testing the strengths of muscle and muscle groups of a person. In use, an inflated pressure pad is engaged with a body area, and a force from a muscle or muscle group is applied to the pad. This force is sensed and a signal representing that force is displayed. The pressure pad is connected to the guide so that the pad may be fixed in a multitude of different positions to engage many different body areas subjected to forces from a multitude of different muscles and muscle groups.

Abstract: An endoscope construction wherein a basic endoscope instrument is covered substantially, over the part which normally contacts the patient, with a condom-like sheath, elastsicized at one or both of its ends in order to prevent contamination from one patient to the other.

Abstract: A music translation device provides a light output pattern in response to an audio input. A divider circuit is used to provide a repeating output which commutates repeatedly among a series of output lines. Each output line is connected to a pair of output devices. The output pairs are arranged along a pair of paths, the output devices being oriented along the lines in an opposed order to create the illusion of oppositely directed motion along the paths.

Abstract: A method and apparatus for testing the strengths of muscles and muscle groups of a person. The apparatus comprises a support frame, a guide post, a support arm, and a force sensing device. The guide post is connected to the support frame such that the position of the guide post can be adjusted along the width of the support frame, and the support arm is connected to the guide post such that the position of the support arm can be adjusted along the height of the guide post. The force sensing device is connected to the support arm, and is provided to engage a body area of a person subjected to a force from a selected muscle or muscle group and to generate an initial signal, such as an elective voltage, in response to the force applied to the force sensing device. The initial signal from the force sensing device is processed, and a resultant signal, representing the force applied to the force sensing device, is displayed.

Abstract: A converter lens interposed between a camera body and an interchangeable lens and having an engagement means at each of the front and rear ends thereof to prevent interconnection with another converter lens. The interconnection of converter lenses are prevented by the engagement of the engagement means at the front end of one converter lens with the engagement means at the rear end of the other converter lens, thereby preventing any increase in mechanical exposure error.

Abstract: Mitomycin derivatives having potent antitumor activity having the formula: ##STR1## wherein A is ON--or R.sub.4 N.dbd.N--[wherein R.sub.4 is selected from ##STR2## and optionally substituted heterocyclic groups (wherein R.sub.5 and R.sub.8 are each independently selected from hydrogen, lower alkyl and lower cycloalkyl; R.sub.6 is selected from hydrogen, halogen, hydroxy, lower alkoxy, amino and nitro; R.sub.7 is selected from lower alkyl and lower cycloalkyl; and X is selected from oxygen, sulphur and imino)];R.sub.1 and R.sub.2 are each independently selected from hydrogen, lower alkyl, lower cycloalkyl, optionally substituted aralkyl, optionally substituted alkanoyl, optionally substituted arylcarbonyl, optionally substituted alkanesulfonyl, arylsulfonyl and aralkylsulfonyl;R.sub.3 is hydrogen or carbamoyl;Y is hydrogen or methyl;Z is selected from hydrogen, methyl and acetyl;and is an .alpha. or .beta. bond.

Abstract: Mitomycin derivatives having potent antitumour activity have the formula: ##STR1## wherein R represents lower alkyl, cycloalkyl or unsubstituted or substituted aralkyl;X represents hydrogen or carbamoyl;Y and Z each independently represents hydrogen or methyl;and represents an .alpha. or .beta. bond.

Abstract: An improved isolator includes a bar of elongated base-forming members adapted to be mounted to a supporting surface and an elongated load-supporting bar adapted to support the load connected to, and supported above, the base-forming bars by a pair of arched flexural supports. Each support is formed of a series of individual flexural elements. The flexural elements are oriented or biased at an acute angle with respect to the horizontal, the first group of elements being biased in an angle opposed to that of the second group. The invention demonstrates more symmetrical response over an equivalent conventional isolator and permits further tuning of isolator response in accordance with load requirements.

Abstract: A shade operator includes a drive unit having a central stud forming the axis of rotation for the shade roller. A manually operable pulley is mounted on the stud, and is engageable with a coil spring clutch member mounted about the stud coaxial with the pulley. The shade roller is engaged by a bushing which is also mounted for rotation on the stud. The bushing is provided with a projection which engages the clutch spring due to the weight of the shade and causes the spring to further grip the stud to prevent rotation Operation of the pulley engages the spring such that its grip on the bushing is loosened, which allows the spring, bushing and shade roller to be driven by the pulley as desired to raise or lower the shade. Halting of pulley rotation allows the spring clutch to fully re-engage the stud to keep the shade at the new desired location.

Abstract: A nail clipper includes a removable receptacle for receiving the nails as they are clipped. The basic construction is relatively standard, except that the lower arm of the pivoting cutters defines an opening through which the clipped nails enter the receptacle. A cushion is also provided between the arms at approximately their pivot point, in order to deflect clipped nails into the receptacle, through the opening. Guidance for the pivoting arms is provided by a band, affixed to the lower arm and movable relative to the upper arm.

Abstract: A tool drive includes upper and lower coaxial manually rotatable drive members and a driven tool member at the bottom of the lower drive member. A reversible unidirectional transmissions rotatably couple both the upper and lower drive members to the driven member. The transmission coupling the lower drive member includes a peripheral ratchet formed in the lower inside face of the lower drive member. A double ended pawl rockably carried by the upper drive member with its opposite ends alternatively drive engaging the ratchet so as to provide a ratchet coupling driving in alternative opposite directions. A follower carried by the driven member engages a cam on the pawl to transfer the pawl between opposite drive positions in accordance with the angular directional relationship between the upper drive and driven members.

Abstract: Mitomycin derivatives of the formula: ##STR1## wherein X is ##STR2## [wherein R.sub.3 is alkyl, cycloalkyl or optionally substituted phenyl; and R.sub.4 is alkyl or cycloalkyl]; n is an integer of 2 to 8; one of R.sub.1 and R.sub.2 is a hydrogen atom and the other is a carbamoyloxymethyl group, or alternatively R.sub.1 and R.sub.2 may be combined together to form a methylene group (.dbd.CH.sub.2); and Y and Z independently represent hydrogen or methyl;exhibit anti-bacterial and anti-tumor activities.