Abstract: A pattern selecting device for a sewing machine of the type having a housing, a panel mounted on the housing for indicating a number of pattern indicia to be selected by the sewing machine operator, and an electronic memory storing a number of stitch control data for producing the stitches in accordance to the pattern indicia. The panel is provided with a first portion carrying a first group of pattern indicia and a second portion for indicating a second group of pattern indicia and a third group of pattern indicia. The pattern selecting device includes two screening plates mounted on the second portion. Both plates are movable relative to the second and third groups of indicia in the second section to selectively hide one of the second and third groups of indicia and visualize the other of the second and third groups of indicia or to hide both the second and third groups of indicia.

Abstract: Apparatus for providing a removable surface for protecting the lens of a viewing device such as a goggle. The apparatus includes a supply magazine for holding a protective film and a take-up magazine for receiving and holding spent film. The magazines are mounted oppositely and in spaced relation adjacent the lens to be protected. A film advance mechanism is provided for advancing the film from the supply magazine across the lens to a take-up magazine and a manual actuator is provided for the advancing mechanism.

Abstract: In a micro-computer controlled sewing machine a conversion switch is provided which can be switched between a first position and a second position. A manually operable controller, such as a foot pedal, is connected to the conversion switch. The circuit means connects the conversion switch to the micro-computer in the electronic sewing machine. When the conversion switch is in its first position, the operable machine controller will control the rotation speed of the sewing machine. When the conversion is in the second position, the manually operable controller will control the needle swing amplitude.

Abstract: In an electronic pattern stitch sewing machine, lock stitches are produced prior to the initial and final stitch of a selected pattern without deforming the patterns. In this machine, under single setting operation conditions the setting of desired sewing parameters is made automatically for a basting operation.

Abstract: A motorcycle helmet defines a cavity in a hard fiber shell. A thermo-electric heat pump is mounted in the cavity, and a light metal rediator is bonded to both shell and pump. One way conductors energize the heat pump from a motorcycle battery source to pump heat from the hard fiber shell to the radiator. A flexible blatter filled with heat transfer liquid is mounted in the hard fiber shell and below the heat pump and in thermal contact with a wearer's head and the heat pump, for conducting head heat to the pump to electrically pump to the radiator for radiation to the atmosphere.

Abstract: A stitch pattern sewing machine utilizes a microcomputer which operates in a stitch control mode and in a malfunction diagnosing mode. Each mode is selectively rendered effective by a changeover switch. The diagnosis of malfunction includes a series of checking steps carried out in a predetermined order. Indication means are selectively illuminated to operate in either one of the two modes in dependence upon the position of the changeover switch.

Abstract: A sewing machine system possesses an interactive communication capability allowing for the assignment of stitch patterns with respect to workpieces to be sewn. The workpieces are arranged within pallets having binary codes impressed thereon. The stitch pattern assignments are made in conjunction with the sensing of the binary codes. The workpieces are automatically processed from a location wherein the binary codes are sensed, to a location wherein the pallets are attached to an automatic positioning system. The workpieces are furthermore processed through to an output position when the respectively assigned stitch pattern has been sewn.

Abstract: An embroidery machine having a plurality of embroidery bars, particularly needle and piercer bars, which are mounted for axial displacement independently of each other and arranged in at least one row alongside of each other, which bars can be coupled individually with a reciprocating drive element in accordance with a program determined by a control. In order to be able to couple each individual embroidery bar with the drive element in accordance with any desired unlimited number of programs without having to stop the drive in order to change the program, each individual embroidery bar can be coupled with the drive element by the force of at least one magnet.

Abstract: This invention pertains to a helmet having a novel ventilating structure located in the dome-shaped portion of the helmet.

Abstract: A ballistic helmet for use by bomb disposal personnel which includes a covering of soft ballistic nylon over a rigid polycarbonate shell. The shell is lined with semi-shock attenuating foam and is designed to cover the entire head. A transparent visor in the front of the helmet can easily be removed by the wearer and a blower assembly provides fresh air inside the helmet to eliminate fogging of the visor. The assembly incorporates an integral communication headset and microphone. Stability of the complete unit on the wearer's head is accomplished by a double-strap retention system.

Abstract: A sewing machine comprises a pedal position detector for detecting the position of a manually operated foot pedal and generating therefrom a pedal position indicating signal. A predetermined position of the armshaft of the sewing machine is detected for generating an armshaft position signal. A soft-start speed setting circuit is provided for successively generating a soft-start speed setting signal of an increasing value as a function of time in response to the occurrence of the armshaft position signal. The soft-start speed setting signal is enabled when it is smaller in magnitude than the pedal position indicating signal and conversely the pedal position indicating signal is enabled when the latter is smaller than the soft-start speed setting signal. The enabled signal is used to control the speed of the sewing machine.

Abstract: An electromagnetic driving device is provided at a non-rotating part of a sewing machine, thereby to rotate a first magnet via transmission mechanism. A second magnet which is opposite to the first magnet with an appropriate space thereby, is rotatably provided with respect to a bobbin carrier. These magnets keep a certain one rotating relative position by means of the opposing magnetic poles, thereby to transmit rotation of the first magnet to the second magnet. Rotation of the second magnet actuates a tension adjusting mechanism comprising a thread tension adjusting spring provided on the bobbin carrier, via the transmission mechanism so as to adjust the thread tension, and controls the electromagnetic driving device in response to designation of the thread tension. Thus, the tension of the lower thread may be adjusted when attaching the bobbin carrier in the sewing machine.

Abstract: Two identical eye pieces are interconnected by a flexible nose strap. Each eye piece is formed from a single piece of plastic material for improved strength and includes a frame and an outwardly domed transparent hood. The hood includes a central lens portion and a side portion which extends laterally from the lens portion to the outer end of the frame. The lens portion is formed by a flat outer surface and a curved inner surface to permit the focal length to remain unchanged whether the eye goggles are used under or above water. The frame is provided with a connecting member engaging the nose strap. The nose strap is formed with longitudinally spaced stops selectively engaging the connecting member. The longitudinal spacings between the stops on one side of the nose strap differ from those between the stops on the other side to obtain precision distance adjustment between the eye pieces.

Abstract: A method of producing for review a tufted fabric pattern prior to actually tufting the fabric with a tufting device is provided. The method comprises the steps of:a. converting specified tufting parameters into a plurality of digital patterns;b. converting the digital patterns into a plurality of video signals; andc. displaying the resultant graphics on a cathode-ray tube means.Variations in tufting parameters can be easily and rapidly screened to determine if a desirable pattern emerges, thereby accelerating the development of marketable tufted fabric patterns.

Abstract: An electronic sewing machine for performing fancy seams, such as button holes, is provided with a memory and data circuits for the control of the stitch forming instrumentalities and has a common control for an individual length adjustment of two portions similar to one another of the fancy seam. The control actuates two programmable memories for stitch lengths in such a way that during sewing a first portion the control is connected to a first one of these memories for storing of data, and during sewing the second portion to the second memory. As the storing of data remains until new data is introduced, one and the same fancy seam can be repeated in conformable performance for an unlimited number of times.

Abstract: A system for controlling a sewing machine includes a drive unit including a motor for driving the sewing machine, a brake unit including a brake for stopping the sewing machine, detection means for detecting operational states of the sewing machine, and input means for supplying operation commands to the sewing machine. The input means converts a plurality of sounds voiced by the operator into predetermined speech signals and issues such signals to a control unit to enable the latter to produce operation command signals corresponding to the speech signals for controlling the drive unit and the brake unit.

Abstract: A sewing machine with an electronic memory stores stitch control signals which are sequentially read out in synchronism with rotation of the upper drive shaft to control at least one of the needle swinging amplitude and the feeding amount or both. Pattern selecting switches are operated to select a pattern of stitches, each stitch being produced by the needle swinging amplitude and feeding amount predetermined by a selected set of stitch control signals of the memory. Manually influenced stitch adjusting means vary either the needle swinging amplitude or feeding amount for fine adjustment of the selected pattern.

Abstract: The invention relates to a safety helmet having an injected thermoplastics shell, and the method for manufacturing the same. The helmet shell is of composite structure and includes a rigid insert of reinforced resin and an outer casing of injected thermoplastics molded onto the insert which is embedded within the mass of said outer casing and is prestressed by shoulders 5 and 6 provided on overlapping portions 3 and 4 of casing 2, after cooling of the same.

Abstract: A thread tightening device for a sewing machine of the type having a main shaft, a vertically reciprocable needle bar with a needle carrying an upper thread, a loop taker and a drive shaft for driving the loop taker and a feed dog; the thread tightening device includes a group of pattern cams operatively connected to the main shaft, pattern selecting device and an arrangement for controlling the vertical movement of the feed dog. This arrangement comprises a control cam and a rotatable shaft, the control cam being slidably axially mounted on the rotatable shaft but not turnable with respect to the shaft. The thread tightening device also includes an element arranged for vertical reciprocating movement in a timed relation with the feed dog, which element engages a lower thread during the stitching operation of the sewing machine.

Abstract: The invention is to provide an electronic sewing machine which is improved in operation by incorporating lighting indication and vocal instrumentalities for making the operation instruction recognizable during operation of the sewing machine and giving parameters of operating instruction in accordance with issued voice, instead of depending upon electronic memories which store many kinds of patterns for lighting indication of required function.