Abstract: Paperboard sheets are fed by a feeder including driven wheels which engage the lowermost sheet of a stack and drive it through the nip rolls of a box-finishing machine is synchronism with the latter. Supporting the sheets is a grate movable between a raised position wherein the wheels are spaced from the sheet and a lowered position wherein the lowermost sheet engages the wheels and is fed thereby to the nip rolls. Below the grate is a vacuum box for holding the sheet on the wheels. Raising and lowering of the grate is effected by a cam which may be adjusted to vary the feed stroke in accordance with the length of the sheets. For driving the wheels there is provided a dual input drive mechanism including a constant velocity input drive and a variable input drive which are resolved at a single output drive to the wheels.

Abstract: Registered conveying and feeding of sheets in a box finishing machine by a wheel or endless belt conveyor and positive air pressure provided on the side of the sheet opposite the conveyor to hold the sheet against movement relative to the conveyor. Air flow across the top surface of the sheet is restricted to establish a constant film of pressurized air above the top surface of the blank for securing the blank to the underlying conveyor.

Abstract: Method and apparatus for exercising and/or testing the cervical muscles of the neck wherein a seated person is secured against a backrest to isolate movement of his head and neck from the remainder of his body. For exercising the cervical muscles between opposite positions of full extension and flexion, the muscles are used to move the head rearwardly against a pivotable movement arm to move the latter against a yieldable resistance weight connected to the movement arm to bias the movement arm in one direction. The head is then moved forwardly and the process is repeated until the movement arm can no longer be moved by said muscles. The number of repetitions is measured and recorded throughout the exercise.

Abstract: Method and apparatus for exercising the lumbar muscles including a movement arm which is moved about either a vertical or a horizontal axis depending on how a support for the movement arm is oriented relative to a primary support. In one position of the support the movement arm is moveable about a horizontal axis with the person seated in a generally upright position while in another position of the support, the movement arm is moveable about a generally vertical axis with the person positioned on his/her side. During exercise, the position of the persons head is fixed relative to the movement arm, and the pelvis is also fixed against movement.

Abstract: A method of charging a battery with electrolyte, utilizing a container having a supply of electrolyte therein and a number of outlet spouts which are simultaneously inserted into the battery cells while the battery is on its side such that when the battery is moved to upright position the electrolyte simultaneously pours into the battery cells from the spouts respectively. The container has a plurality of cells communicating with the spouts respectively and a conduit in the container interconnects all of the cells of the container.

Abstract: A method of testing muscles of the lower trunk of a subject human body including the steps of restraining the pelvis against movement, connecting to a movement arm to a resistance weight of known force less than the maximum static strength of the muscles to pivot the movement arm in one direction to lift the resistance weight and then in an opposite direction to relieve the force on the movement arm to cause the resistance weight to return to its starting position, repeating the steps until the muscles fatigue and, wherein there is further included the steps of counterbalancing the upper trunk by a counter-weight connected to the movement arm wherein the stroke of the resistance weight is limited to three inches in order to reduce kinetic energy of the weight.

Abstract: Apparatus for exercising rotary neck muscles having a compound cam for transmitting forces from the neck muscles through a movement arm and to a resistance weight to lift the weight. A pin mounted to move with the movement arm is receivable in one of a plurality of apertures in the cam to rotate the cam with the movement arm. The cam transmits drive to lift the resistance weight by a cam follower engageable with either of a pair of cam surfaces formed on the periphery of the cam depending upon the direction of rotation of the cam. Adjustable stop mechanisms are also disclosed for limiting the range of angular movement of the movement arm.

Abstract: Abutment posts, gingival collars, and universal adaptors along with their fixation screws that are used for insertion into dental implants are revealed. The adaptor is universal in that it matches to many different shaped, sized, and styled implants, and standardizes their restoration with uniform gingival collars and abutment posts. A gingival collar of varying sizes, which extends from the top of the flange of the adaptor to the height of the gingival tissue, is used to bring the restoration of the implant into the oral cavity. A post becomes connected to the gingival collar to create a restoration for the placement of a crown or coping over the implant. The top of the adaptor has a projection which is indexed and the top of the gingival collar is also indexed. This indexing allows specific angle correction in the horizontal plane by the counter rotation of the gingival collar and the post head.

Abstract: A rocker recliner having carrier scissor links mounting the seat and backrest assembly to the rocker cams through a pair of front and rear mounting links mounted on the cam. Rocking motion is prevented when the chair is in T.V. and advanced reclining positions by a linkage pivoted to the base, rocking cam and the rear mounting link. This rock-blocking linkage idles when the chair is rocking but becomes unified to prevent rocking of the cam when the chair moves into T.V. position.

Abstract: A recliner has a layer of upholstery fixed to the seat and extending continuously and fixed to the footrest frame which is moveable to a retracted position below and rearwardly of the front end of the seat with the upholstery extending about and under the front end of the seat. In one embodiment the footrest frame includes two ottoman boards mounted to a footrest linkage which includes a five bar linkage for actuating the ottoman boards. Additionally, a pair of locking links are mounted to the footrest linkage and connected to each other for releaseably holding the footrest linkage in retracted position.

Abstract: Method and apparatus for testing and/or exercising the rotary neck muscles which are used to twist or turn the neck from side-to-side about a generally vertical pivot axis passing through the cervical vertebrae. The head is held by and between a pair of pads mounted on a rotatable frame fixed to a movement arm in the form of a vertical pivot shaft rotatable about the pivot axis. The movement arm is connectable to resistance weight stack to oppose pivotal movement of the movement arm in one direction. During exercise, the subject is seated against a backrest with a front pad assembly immobilizing the chest and shoulder areas of the subject. Additionally, the head pads prevent forward and rearward movement of the neck in extension and flexion so that only the rotary torsion muscles of the neck are exercised.

Abstract: Method for exercising and/or testing the cervical muscles of the neck wherein a seated person is secured against a backrest to isolate movement of his head and neck from the remainder of his body. For exercising the cervical muscles between opposite positions of full extension and flexion, the muscles are used to move the head rearwardly against a pivotable movement arm to move the latter against a yieldable resistance weight connected to the movement arm to bias the movement arm in one direction. The head is then moved forwardly and the process is repeated until the movement arm can no longer be moved by said muscles. The number of repetitions is measured and recorded throughout the exercise.

Abstract: A recliner has a layer of upholstery fixed to the seat and extending continuously and fixed to the footrest frame which is moveable to a retracted position below and rearwardly of the front end of the seat with the upholstery extending about and under the front end of the seat. In one embodiment the footrest frame includes two ottoman boards mounted to a footrest linkage which includes a five bar linkage for actuating the ottoman boards. Additionally, a pair of locking links are mounted to the footrest linkage and connected to each other for releasably holding the footrest linkage in retracted position.

Abstract: A removable cover for a T-top automobile roof having seals along its front and rear edges for engagement with the automobile frame, and seals along its opposite side edges for engagement with the side windows of the automobile. Removable fastener elements are provided for releasably attaching the cover to the frame of the automobile. In one embodiment the fasteners are male and female snaps. The female snaps are provided on the front edge of the cover and have tabs requiring the front portions of the female snaps to be engaged prior to rear portions so that the male and female snaps are interlocked. In addition, fasteners are provided at the four corners of the cover so as to attach to the frame of the automobile at a level below the upper edge of the automobile windows. This promotes establishment of a seal between the side edges of the cover and the side windows of the automobile.

Abstract: Method for exercising or testing the rotary torso muscles in which the chest and shoulder area of the subject is secured against movement while the pelvis is also secured against movement to isolate the rotary torso muscles for testing or exercise. The subject while so secured and seated exerts a force with the rotary torso muscles to rotate a movement arm about a vertical axis against a resistance suitably chosen from a weight stack to be less than the maximum static strength of said muscles. The subject then returns to the starting position and repeats the exercise until the rotary torso muscles can no longer rotate the movement arm. The subject's static strength is measured by fixing the movement arm in several different angular positions and measuring the force exerted by said muscles on the movement arm in each of said positions.

Abstract: A tie member for insertion through a segment of a spinal column for clamping that segment to a link or frame embracing that segment comprises an endless loop of wire flattened to form two strands substantially parallel and contiguous with one another at least in their end regions in which one strand runs into the other in an end loop. Such a tie member of finite length with the end loops can be readily inserted through a segment of a spinal column, manipulated into and retained in a desired position and have its ends twisted together for clamping. The endless loops obviates any sharp ends that could accidentally cause damage to the spinal column. Ancilliary instruments for use with the tie members include a keeper with arms defining an end recess across which extends a pin on which the tie member end loops can be received, and a twister with a crank handle and a tapered T-shaped groove to receive a keeper, and a puller having a T-shaped handle and a hook compatible with the tie member end loops.

Abstract: Method of testing muscles of the lower trunk of a subject human body including the steps of restraining the pelvis against movement, connecting to a movement arm a resistance weight of known force less than the maximum static strength of said muscles, having the subject move the resistance weight by exerting the muscles to pivot the movement arm in one direction to lift the resistance weight and then in an opposite direction to relieve the force on the movement arm to cause the resistance weight to return to its starting position, repeating the steps until the muscles fatigue and, wherein there is a further included the steps of counter-balancing the upper trunk by a counter-weight connected to the movement arm and wherein the stroke of the resistance weight is limited to three inches in order to reduce kinetic energy of the weight.

Abstract: Apparatus for testing and/or exercising the rotary neck muscles which are used to twist or turn the neck from side-to-side about a generally vertical pivot axis passing through the cervical vertebrae. The head is held by and between a pair of pads mounted on a rotatable frame fixed to a movement arm in the form of a vertical pivot shaft rotatable about the pivot axis. The movement arm is connectable to a resistance weight stack to oppose pivotal movement of the movement arm in one direction. During exercise, the subject is seated against a backrest with a front pad assembly immobilizing the chest and shoulder areas of the subject. Additionally, the head pads prevent forward and rearward movement of the neck in extension and flexion so that only the rotary torsion muscles of the neck are exercised. The front pad assembly includes a frame holding a plurality of pads for movement into and out of an operative position in which the pads engage the chest and shoulder areas.

Abstract: Apparatus for exercising and/or testign the cervical muscles of the neck wherein a seated person is secured against a backrest to isolate movement of his head and neck from the remainder of his body. For exercising the cervical muscles between opposite positions of full extension and flexion, the muscles are used to move the head rearwardly against a pivotable movement arm to move the later against a yieldable resistance weight connected to the movement arm to bias the movement arm in one direction. The head is then moved forwardly and the process is repeated until the movement arm can no longer be moved by said muscles. The number of repetitions is measured and recorded throughout the exercise.