Abstract: A backrest adjustment structure for adjusting the reclined position of the backrest of the seat of a baby stroller is disclosed to include a belt connected between the ends of the handlebar of the baby stroller at the back side of the backrest of the seat, a housing coupled to two equal belt sections of the belt at the back side of the backrest of the seat of the baby stroller, and two retaining blocks pivotally mounted on a pivot member inside the housing at two sides of the belt and turnable about the pivot member between a first position to hold down the two belt sections of the belt and a second position to release the belt sections of the belt. The two retaining blocks are forced by the two reversely extending ends of the belt sections of the belt to hold down the two belt sections with respective teeth thereof and to support the backrest of the seat in the desired reclined position.

Abstract: Disclosed is a frame structure for baby stroller, which includes two front-leg tubes, two rear-leg tubes, two handlebars pivotally coupled to the front-leg tubes, two bottom tubes respectively pivotally coupled between the front-leg tubes and the rear-leg tubes; two front extension bars respectively pivoted to the two front-leg tubes, each front extension bar having a front rod member, a rear rod member pivoted to one front-leg tube, and a joint coupled between the front rod member and the rear rod member for allowing the front rod member to be turned relative to the rear rod member and locked at the desired angle, and two quick-release locks respectively applied on the front rod members of the front extension bars to hold a foldable front cross bar between the front rod members of the front extension bars for allowing movement of the foldable front cross bar along the front extension bars to fit different infant carriers when unlocked the quick-release locks.

Abstract: Disclosed is a frame structure for stroller having a front connecting tube connected between the bottom ends of the front-leg tubes thereof to support the front wheel assemblies on the front-leg tubes such that the front wheel assemblies are received in the space horizontally between the two rear-leg tubes and vertically between the front connecting tube and a rear connecting tube that is connected between two rear-leg tubes when the frame structure for stroller is collapsed.

Abstract: A desk for supporting computer includes a top panel having a slot formed in the middle portion for engaging with a casing which is formed on a rear portion of a plate. The plate includes a front hook for engaging with the front portion of the top panel for allowing the plate to be secured to the top panel without fasteners. The casing includes one or more openings for engaging with electric wire and for allowing the electric wire to engage through the plate. A support is pivotally secured to the top panel for supporting a mouse.

Abstract: A combination desk leg is composed of a leg base, a top base, two support tubes, a connection member, and two cover plates. The leg base is provided in the top thereof with two locating holes. The top base is provided in the underside thereof with two locating holes. Two support tubes are provided respectively with two insertion ends having a pivoting hole. The bottom insertion ends of two support tubes are received respectively in the locating holes of the leg base and the top base such that the bottom insertion ends are fastened securely with the locating holes by the fastening elements. The connection member is mounted on the top of the top base for connecting the desk leg with the desk top. The cover plates are provided respectively with a plurality of retaining elements for fastening the cover plates with the top base, the leg and the support tubes.

Abstract: A process of preparing 2-cyano-3,5-dimethyl-4-methoxypyridine. The process includes the steps of: acylating 2-methyl-1-penten-1-alkoxy-3-one to obtain 2-alkoxycarbonyl-3,5-dimethyl-4-pyrone; ammonolyzing 2-alkoxycarbonyl-3,5-dimethyl-4-pyrone to obtain 2-carboxamido-3,5-dimethyl-4(1H)-pyridone; methylating 2-carboxamido-3,5-dimethyl-4(1H)-pyridone to obtain 2-carboxamido-3,5-dimethyl-4-methoxypyridine; and dehydrating said 2-carboxamido-3,5-dimethyl-4-methoxypyridone to obtain 2-cyano-3,5-dimethyl-4-methoxypyridine.

Abstract: A process of preparing 2-hydroxymethyl-3,5-dimethyl-4-methoxypyridine including the steps of acylating 2-methyl-1-penten-1-alkoxy-3-one to obtain 2-alkoxycarbonyl-3,5-dimethyl-4-pyrone; ammonolyzing 2-alkoxycarbonyl-3,5-dimethyl-4-pyrone to obtain 2-alkoxycarbonyl-3,5-dimethyl-4(1H)-pyridone; halogenating 2-alkoxycarbonyl-3,5-dimethyl-4(1H)-pyridone to obtain 2-alkoxycarbonyl-4-halo-3,5-dimethylpyridine; methoxylating 2-alkoxycarbonyl-4-halo-3,5-dimethylpyridine to obtain 2-methoxycarbonyl-3,5-dimethyl-4-methoxypyridine; and reducing 2-methoxycarbonyl-3,5-dimethyl-4-methoxypyridine to obtain 2-hydroxymethyl-3,5-dimethyl-4-methoxypyridine.