Abstract: According to an aspect, an electrochemical cell may include an electrolyte and an anode in the electrolyte, the anode including an iron-containing active material, at least one of the anode and the electrolyte including an additive reactive to inhibit hydrogen evolution in a charge state and in a resting state of the electrochemical cell, and the additive in a concentration greater than about 10 and less than about 10,000 atoms of additive per million atoms iron of the iron-containing active material.

Abstract: According to one aspect, an additive for an iron negative electrode of an alkaline electrochemical cell may include a powder of discrete granules including agglomerated particles, the agglomerated particles including at least one metal sulfide.

Abstract: An iron-air battery including an iron electrode in contact with an anode current collector, wherein the iron electrode includes a plurality of channels; an oxygen reduction reaction electrode having a first surface facing the plurality of channels and an opposing second surface in contact with air; an oxygen evolution reaction electrode interdigitated with the plurality of channels of the iron electrode, wherein at least a portion of the oxygen evolution reaction electrode is disposed within the plurality of channels in a direction perpendicular to a plane of the oxygen reduction reaction electrode; and an electrolyte in contact with the iron electrode, the first surface of the oxygen reduction reaction electrode, the plurality of channels, and the oxygen evolution reaction electrode.

Abstract: According to one aspect, an additive for an iron negative electrode of an alkaline electrochemical cell may include a powder of discrete granules including agglomerated particles, the agglomerated particles including at least one metal sulfide.

Abstract: The present invention relates generally to the field of a system and method of interaction between an end user and a sewing machine. The sewing stitch patterns are transmitted to the mobile device through a wireless signal along with a user identification number to either a server or a wireless receiver module. The server uses the user identification number to look up the user's preferred Internet vendor and content provider. Once the preferences have been determined, this information is sent from the server to a wireless receiver module. The wireless receiver module will serve as a duel function as a receiver and transmitter of signals or send a signal directly to the wireless receiver module. The wireless receiver module transmits a control signal and controls the operation of a motor unit The wireless receiver module transmits a feedback wireless progress signal.

Abstract: This invention comprises a means to control stitch length of household sewing machines when used on free-motion quilting frames. A sensor in the form of a computer mouse or a pair of sensors in the form of optical encoders is used to determine the translational speed of the set of carriages that hold the sewing machine. This information is sent to electronic circuitry that converts this information to an electrical resistance which is applied to the foot pedal control electrical connector on the sewing machine. When thusly applied, this resistance sets the rotational speed of the sewing machine. This invention achieves stitch length uniformity by maintaining the proper relationship between the input signal from the sensor or sensors caused by carriage translation and the output resistance to the sewing machine which controls its rotational speed.

Abstract: A machine for performing machining operations on a work-piece is disclosed that includes a carriage with a robotic arm mounted thereon. The arm includes a movable head containing a tool for performing the machining operations on the work-piece. A laser position determination system is included for determining the actual spatial relationship position the carriage and the work-piece and providing a first signal representative thereof and further determining the spatial relationship of the head to the work-piece during actual machining operations on the work-piece and providing a second signal representative thereof. A computer having a computer program provides a third signal to the robotic arm for machining the work-piece based on a predetermined spatial relationship between the carriage and the work-piece and for receiving the first and second signals and adjusting the third signal based on the actual spatial relationship between the carriage and the work-piece and the head and the work-piece.

Abstract: An apparatus for performing machining operations on an object includes a carriage, a movable head configurable with an operating attachment to perform the machining operations on the object, and a position determination system operable to determine the spatial relationship of the carriage and the object and provide a first signal representative thereof. The position determination system periodically determines the spatial relationship of the head to the object during machining operations on the object and provides a second signal representative thereof. The second signal is used to re-position the head to a desired position during the machining operations.

Abstract: A machine for performing machining operations on a work-piece is disclosed that includes a carriage with a robotic arm mounted thereon. The arm includes a movable head containing a tool for performing the machining operations on the work-piece. A laser position determination system is included for determining the actual spatial relationship position the carriage and the work-piece and providing a first signal representative thereof and further determining the spatial relationship of the head to the work-piece during actual machining operations on the work-piece and providing a second signal representative thereof. A computer having a computer program provides a third signal to the robotic arm for machining the work-piece based on a predetermined spatial relationship between the carriage and the work-piece and for receiving the first and second signals and adjusting the third signal based on the actual spatial relationship between the carriage and the work-piece and the head and the work-piece.