Abstract: In a compound archery bow having composite bowstring and take-up string cam pulleys carried by the tip portions of bow limbs extending oppositely substantially symmetrically from a handle with the bowstring connecting the composite cam pulleys and take-up strings extending from each composite pulley to the opposite bow limb, each composite cam pulley is composed of a generally elliptical bowstring pulley section having a major axis passing through its portions of substantially greatest length and a generally elliptical take-up string pulley section having a major axis passing through its portion of substantially greatest length, which pulley sections are integrated in parallel side-by-side relationship with planes containing their major axes substantially perpendicularly intersecting.

Abstract: An apparatus is disclosed for propelling a projectile by the use of an archer's bow. An elongate bar means having a first and second end is attached to a handle of the bow in a substantially perpendicular manner relative to the handle of the bow. A slider block with an axial channel formed therein is slidably received along the elongated bar for enabling longitudinal movement along and relative to the bar. An attachment means connects the bowstring to the slider block. A bore formed in the slider block holds the projectile such that in use the slider block is slidably drawn along the bar when the bowstring is moved into drawn position. Upon the release of the bowstring, the force of the bowstring propels the slider block along the bar. The projectile is released from the slider block upon the slider block striking a stop means to enable the projectile to be forcibly and releasably propelled from the bow.

Abstract: An archery string is produced of polyethylene monofilaments of a super high molecular weight by multi-staged bundling and twisting in order to lower the elongation percentage, thereby assuring high hitting rate in shooting and better endurance.

Abstract: A bow system that includes a release mechanism that engages simultaneously a spool on the bowstring and a nock on the arrow that are arranged to automatically hold the arrow centered during the arrow drawing and release procedures. A rear sight is further mounted upon the bowstring that has an eyelet threaded into a swage lock to the string. The eyelet can be turned to any alignment desired and locked in place using a locking nut.

Abstract: The bowstring peep sight is inexpensive and durable and can be easily, rapidly and securely connected to the bowstring of a compound or non-compound archery bow without having to serve locking knots on the bowstring as with conventional peep sights. The peep sight is particularly useful with compound archery bows where the close proximity of multiple segments of bowstring to each other renders the serving of knots difficult and time consuming. Serving knots can slip, whereas the present peep sight is positively locked but easily loosenable and/or removable from the bowstring. The peep sight has a body defining a tapered peep and a peripheral string groove. The body may be partly cut away to expose the string groove to one or more movable connector plates which can be screwed thereagainst. Instead, the main body can be split into front and rear plates releasably secured against each other by external or internal screws, or have studs press-fittable into mating openings, trapping the bowstring therebetween.

Abstract: A bow sight particularly suited for use on bows wherein the draw rating and hence arrow trajectory may be varied. A base of the sight has a forward extension on which is pivotally mounted a carrier having a sighting post. The base extension also supports a bridge having an inclined surface provided with elevation indices visible to the archer during aiming of the bow. The base extension and the carrier jointly provide stop means to retain the carrier and its sighting post in a selected elevation setting. A stop element is positionable within one of a series of recesses in the base extension corresponding to the bow draw rating. The stop element is sequentially engageable with a multitude of radially grooves formed in the carrier. Vertical adjustment of the carrier is through an arc the magnitude of which arc and the distance between carrier elevational settings being determined by the distance of the stop element from the carrier pivotal axis.

Abstract: Apparatus for aiding the drawing and releasing of a bowstring, including a flexible endless cord having a pair of end loops which snugly receive the bowstring, and an intermediate draw loop of predetermined size for snugly receiving and holding a bowstring draw pin. Expansible and contractible sleeves are mounted on the cord between the end loops and the draw loop, permitting portions of the endless cord to relatively move and expand the size of the draw loop to a greater predetermined size when the bow is drawn, and thus permit the escape of the draw pin. One aspect of the invention includes hand held bowstring draw mechanism pivotally mounting the draw pin for movement between a bowstring draw position and a bowstring release position and mechanism for selectively holding the draw pin in the draw position.

Abstract: An arrow release for receiving a bow string and an arrow nock. The arrow release is made of light weight durable material, preferably buckskin. An elongated strip of such a material is doubled together and stitched together forming a crease at one end of the arrow release for receiving a bowstring. This structure allows the arrow release to be attached to the bowstring at all times. A slit formed in the creased portion of the arrow release is adapted to receive an arrow nock. The opposite end of the arrow release may be grasped by the full fist of the user, then pulled back drawing the bowstring to a full draw position. The arrow may then be shot when the grip of the user is relaxed, releasing the arrow release.

Abstract: The present invention provides an attachment for an archery bow which allows a bow string to be pre-cocked prior to use. The attachment comprises a plate attached to a midpoint on the bow and an elongated rod having one end adapted to engage the bow string and its outer end pivotally secured to the plate. The rod is pivotal between a first position in which the rod extends outwardly from the bow and engages the midpoint of the bow string to maintain the bow string in a partially drawn pre-cocked position. When the bow string is moved to its fully cocked position, the rod under the force of gravity pivots downwardly to its second position and out of the way of the bow string to permit the normal operation of the bow.

Abstract: There is disclosed a practice device to be used with a bow. This device comprises a cylindrical tube transversely secured to the main body of the bow, and a piston rod reciprocately engaging the tube according to the motion imparted thereto by the user. The inner end of the piston rod is abuttingly engageable by the bow-tensioning cord and is capable of stretching the latter outwardly from the bow main body. The piston rod is used as an arrow, except that it remains mounted in the cylindrical tube, never leaving the bow after release of the stretched tensioned bow cord.

Abstract: An archery back sight is arranged to removably snap onto or slide onto a bowstring, and connected to a cord having an elastic portion and an inelastic portion which aims the backsight forwardly. The cord is positioned in a manner such that breaking of the cord will not endanger the user.

Abstract: The assembly includes a compound bow having a cable guard in the form of a plate secured to the bow handle and an arm extending rearwardly thereof to deflect laterally the pulley cables out of alignment with the arrow rest for improved arrow vane clearance. A cable slide guide bearing smooth, spaced cable-receiving side grooves is integrally or separately connected to the cable guard. A novel drawcheck is utilized wherein an indicator component thereof is a flexible clicker blade or a light assembly with switch, the switch arm of which is connected to and extends from the slide guide in the path of travel of an activator component thereof. The latter is a protuberance, such as a head, block, cylinder or the like secured to one of the cables.

Abstract: A bowstring-held archery device which serves as an anchor point for an archer's pulling hand, the device having a body and a tail projecting from the body, the body having an arrangement for holding the device on a bowstring in fixed relationship thereto, the tail having sufficient length to project into the corner of the archer's mouth, whereby the bowstring-held archery device enables the archer to consistently duplicate the anchor point, and the device allowing the archer to see the bowstring during aiming without interfering with sighting of a target.

Abstract: A compound archery bow with a bowstring and coincident cable return runs in connection with an overcenter pulley at opposite bow limbs. A cable positioner adjacent the extremity of each bow limb embraces the cable return runs and prevents bowstring and cable interference in the operation of the bow.

Abstract: An elongated guide member is held by a support for associating it with a bow in a longitudinal direction relative to the shooting motion of the bowstring. The guide member slidably receives a projectile arranged to be propelled by the bowstring. The guide member is slidably held in the support so that it can be positioned forwardly when the bow is not being used but can have rearward movement during drawing motion of the bowstring. In one embodiment of the invention, the guide member employs telescoping parts for compacting the length thereof when not in use. A projectile used with the shooting guide preferably has a nocking point forward of its longitudinal center of gravity for stabilized shooting.

Abstract: The ends of a compound bow tension cable are positively and adjustably anchored by an attachment bracket pivotally mounted upon the bow limb tips adjacent the eccentric wheels. The attachment bracket includes two somewhat similar components, elongated in nature, with one component pivotally attached relative the bow limb tip and the other component having a tension cable end fixed thereto. The two components are assembled in an overlapping arrangement with the juxtaposed faces thereof provided with mating adjustment elements such as transversely disposed teeth or serrations whereupon after selecting the appropriate relative longitudinal relationship between the two components, a releasable fastener is tightened to retain the mating adjustment elements in a fixed disposition insuring a rigid bracket member maintaining the selected tension upon the attached cable end.

Abstract: The bow has a first arm and a second arm, the first arm flexing more than the second arm during drawing movements of the bow, and a pulley on at least one of the arms. A bowstring with a nocking point extends between the arms. The pulley and the bowstring are arranged on the bow so as to maintain the nocking point in substantially the same plane as the arrow shelf in all drawing movements of the bowstring.

Abstract: A compound bow includes a pair of limbs that extend from opposite end portions of a handle member. Each limb has a free end portion which is rotatably and eccentrically mounted on a pulley. A continuous cable is reeved about the pulleys and extends between the free end portions of the limbs. The portion of the cable reeved about the pulleys includes devices for engaging sprockets of the pulleys in a manner to permit adjustments in the draw length and draw weight of the cable. A flexible portion of the cable extends between the pulleys and is arranged to receive the arrow. A rigid portion of the cable includes a pair of overlying rigid sections each extending from a respective pulley to the free end portion of the opposite limb. The flexible and rigid cable portions are aligned with the longitudinal axis of the bow to eliminate torque to the limbs at all times.

Abstract: A compound bow having multiple pulley sheaves on a common axis at each distal end of the bow limbs, the sheaves having a cross-over groove which carries the bow string to the center of the bow limb during the draw of an arrow to prevent a twisting torque on the bow limbs at the periods of greatest stress and bending of the limbs.

Abstract: A compound bow, and a cabling system and eccentric for compound bows. Cable end terminals are adapted to be removably coupled together whereby to facilitate field disassembly. The bow has a pair of eccentric pulleys revolvably coupled at its opposite ends, over which a preferably segmented cable system is wound. The cable system preferably comprises a pair of pulley cables having a first end revolvably associated with a pulley and an opposite end adapted to be axially secured to the bow, a pair of string cables each having a first end revolvably associated with one of the pulleys and adapted to be selectively coupled to one of the pulley cable first ends and a second end terminating in a teardrop fitting, and a bow string extending between opposite bow limbs coupled to the teardrop fittings for propelling an arrow. Unique coupling members secured to ends of the pulley cables and the string cables enable them to be removably coupled together.

Abstract: A compound bow having a handle and flexing limbs extending outwardly from the handle. A bracket is carried adjacent a medial portion of the handle and a pair of arms are pivotally secured thereto. The arms diverge rearwardly from the bracket. A string engaging member is carried adjacent the outer ends of each of the arms. A pair of pulleys are carried adjacent each remote end of the limbs. A bow string has opposed ends thereof attached to a respective inner end of a respective arm. The string extends around the pulleys on the ends of the limbs and the string engaging members so that when a notching portion of the string is drawn for shooting an arrow, the pivotal arms are pivoted from an open extended position to a partially closed position providing a uniform draw of the string when drawing the string from a released position to a fully drawn position. A pair of eccentric cams are carried adjacent the arms over which respective opposed end portions of the string extends.

Abstract: An archery bow wherein the draw weight increases as a function of draw displacement to a point just short of maximum draw displacement, such that the draw weight is substantially reduced at maximum draw string displacement.First and second levers fixed together at approximately a 90 degree angle are rotatably coupled to a support arm fixed to the bow body. The bow string is anchored at each end to the first lever ends and disposed about pulleys connected at the bow limb ends. Separate limb tension cables are anchored between the limbs and pivotal rollers connected at the ends of the second lever. Rotation of the second lever (and pivotal rollers) approximately 90 degrees by displacing the bow string toward its maximum position causes each roller to move onto a fixed flat surface, substantially reducing the draw weight on the bow string just short of maximum draw displacement.

Abstract: A compound bow includes a pair of limbs that extend from opposite end portions of a handle member. Each limb has a free end portion which is rotatably and eccentrically mounted on a pulley. A continuous cable is reeved about the pulleys and extends between the free end portions of the limbs. The portion of the cable reeved about the pulleys includes devices for engaging sprockets of the pulleys in a manner to permit adjustments in the draw length and draw weight of the cable. A flexible portion of the cable extends between the pulleys and is arranged to receive the arrow. A rigid portion of the cable includes a pair of overlying rigid sections each extending from a respective pulley to the free end portion of the opposite limb. The flexible and rigid cable portions are aligned with the longitudinal axis of the bow to eliminate torque to the limbs at all times.

Abstract: A bow having a rigid handle section and a pair of resiliently and flexibly recurved limb sections, with limb tip nocks and bowstring.The bow has self-holding, cock position of higher brace for the retention of potential energy. The bow is selectively releasable from such cock position to another position of lower brace for the delivery of such potential energy.The limb may have a slot in the direction of string travel for the free passage of the bowstring therethrough.The bowstring includes a bowstring length related to limb characteristic and where applicable also includes a design to provide such free and direct path by a bifurcation or a division of the string, spaced by an enlargement of the limb nocking sections for passage of the string portions on either side of the limbs, such space being maintained for a sufficient distance by a yoke means adjacent to a central arrow nocking section wherein the string portions are undivided.

Abstract: Compound bow having two eccentric wheels or cams at each end. One of the wheels may be quickly manually adjusted with respect to the other without disassembling the strung bow to adjust the magnitude of drop off at full draw without significantly changing the draw length or peak weight. Also, a ball and socket type quick connect and disconnect device is provided for dead ending the bow cables or strings to the eccentric wheels or cams.

Abstract: A method of stringing a compound archery bow. A preswedged off-end of a first cable is mounted to a mount on a first pulley. The first cable is then extended to a second pulley, wrapped in a grooved section of a central circumferential surface of the second pulley, strung in a slot on one sidewall of the second pulley, and passed through a central aperture of the second pulley until a mount chip is directly adjacent a stepped section of another slot on the other sidewall of the second pulley. The cable is then strung into a slot on the other side and the mount chip is inserted into the stepped section. The remaining length of the cable is wrapped in another grooved section of the central circumferential surface of the second pulley and the end of the first cable is then attached to the bow string. A second cable is then strung by following the steps of the method for stringing the first cable in reverse order.

Abstract: An archer'shooting bow comprises a pair of elongate resilient limbs, each disposed at a respective end of an elongate rigid handle riser assembly which has a central handle portion. The limbs have outer tips at the opposite ends of the bow. A bowstring is coupled between the outer limb tips adjacent the rear face of the handle riser assembly. The bowstring has a nocking point adapted to be drawn from a rest position to a drawn limb-flexing position on application of drawing force thereto. A mounting device connects each limb only at a location intermediate its length to the respective end of the handle riser assembly for hinging motion of the limb relative to the assembly about an axis disposed substantially perpendicular to the plane in which the bowstring moves in being drawn from its rest to its drawn position. The geometries of the mountings of the limbs to the assembly are such that each limb has an inner tip adjacent a front face of the handle riser assembly proximate the handle portion.

Abstract: The cables on a compound bow are provided at the ends thereof with double ears, hooks or anchors whereby a new bow string may readily be applied before the old string is removed or severed.

Abstract: The attachment includes a tubular barrel through which a ball or other missile is projected by the force of the bowstring. The tubular barrel is rigidly attached at its muzzle end to the central portion of a bow, and is provided with elongated slots along its upper and lower surfaces through which the bowstring passes. Within the barrel a slidable carrier is attached to the bowstring. The carrier releasably holds the missile even when the barrel is tilted downward as well as when the bow is drawn. When the bowstring is released, the carrier and missile are driven toward the muzzle of the barrel; but, when the bowstring and attached carrier decelerate as they approach the muzzle, the momentum of the missile causes it to pull free of the carrier and to continue through the muzzle toward the target, while the carrier remains behind in the barrel. The attachment is removable from the bow and adjustable with respect to it.

Abstract: A compound bow having a center handle portion, upper and lower limbs having inner ends connected to the handle portion, and upper and lower draw pulleys mounted on the free outer ends of the upper and lower limbs. Each of the draw pulleys has a peripheral portion, a central portion, and first and second spaced grooves in the peripheral portion. A passage in each draw pulley leads through its central portion and connects the first and second grooves.Each pulley has an inner surface portion and an outer surface portion on the peripheral portion with the inner surface portion facing the bow and the outer surface portion being directed away from the bow when the bow is in its rest position. A pivotal mounting is provided for each pulley with the pulleys being eccentrically positioned on the mountings for rotational movement during draw of the bow with the bowstring supported by the pulleys. Rotational movement of the pulleys increases the effective length of each of the bow limbs.

Abstract: An elongated horizontal body is provided including opposite end portions. One end portion of the body includes an anchor portion adapted to be engaged and releasably gripped by a hand release and the other end portion of the body includes an upstanding bore formed therethrough for receiving the portion of an associated bow string closely adjacent the nocking point on the bow string. The body includes structure whereby it may be retained in its predetermined position on the bow string and a first form of the body includes an upstanding longitudinally extending slot formed therein of a width slightly less than the diameter of the bore and extending from the latter to and opening outwardly of the remote end of the body. A second form of body includes an upstanding L-shaped slot formed therethrough with one leg of the L-shaped slot extending longitudinally of the body and opening into the bore at its free end and the free end of the other leg of the slot opening laterally outwardly of one side of the body.

Abstract: A compound archery bow having a central stretch of a bow string with loops at its opposite ends and is adjustably connected at its opposite ends to the opposite ends of the bow cable by being hooked onto any one of an integral series of cleats affixed to the opposite ends of the bow cable.

Abstract: A compound bow structure with a bow grip and arrow sight window offset to one side of the bow center with an overcenter pulley at the flexing ends guiding the nocking stretch centrally of the grip and additional tension cables centrally of the flexing limbs wherein the full draw tension is central of the limbs to avoid twisting of the limbs in draw.

Abstract: An improved compound archery bow is disclosed which is formed by a pair of opposed limbs joined to a centrally positioned handle section. A pair of pulleys are mounted by brackets extending inwardly from the ends of the limbs, each of the pulleys being pivotally mounted on the brackets through an eccentric axis of the pulley. A cable system for holding the bow string in a tensioned condition is passed through the two opposed pulleys, and the two ends anchored in a pair of extensions of the eccentric axis of the pulley.

Abstract: A bow stringing and unstringing device for a compound bow has a stop mounted on the outer ends of resilient limbs of a compound bow to prevent movement of the outer ends of the anchor wires of the bow back over the pulleys when the bowstring is removed from the ends of the anchor wires. A stringer wire has a suitable hook for attaching the ends thereof to suitable connector, for example, an eye-bolt, also at the ends of the resilient limbs of the bow for releasing the tension on the bowstring when pulled like the bowstring so that the bowstring may be removed from the bow. A novel brace which fits between the drawn stringer wire and the bow handle is provided for maintaining the tension in the stringer wire while removing and replacing the bowstring and for carrying the stringer wire when the same is not in use.

Abstract: An archery bow having a pair of bow limbs pivotally connected together in end-to-end relationship, whereby the bow limbs can be folded so that the backs of the respective bow limbs face each other. The interconnected end portions of the bow limbs are preferrably enlarged with respect to the remainder thereof forming a handle portion of the bow. The handle end portions are provided with passageways therethrough extending from the bellyside to the backside thereof. An endless bowstring extends from the backside of the bow through the passageways in the handle end portion of the bow and around the ends of the respective bow limbs. The bow limbs can also comprise a pair of flexible, elongate members attached, respectively, to the backsides of the limb members to extend inwardly from the tip ends thereof, with their inwardly extending ends being firmly secured to the respective limb members.

Abstract: A bow string apparatus specifically designed for use with an archer's compound bow. The apparatus is provided with attachment brackets for attaching a pull cord to the bow cables between the opposite eccentric pulley wheels and the bow string attachment points. The pull cord utilizes a low friction sheath member and a sliding-locking bar for pulling tension on the bow and locking the bow in a compressed position while changing the bow string thereof.

Abstract: An arrow positioning device for compound bows having synchronizing cables which includes an arrow positioner including a pair of retaining fingers for engagement with an arrow, and a release rod and trigger device cooperating with the retaining fingers and activated by movement of one of the synchronizing cables to permit an initial precise positioning of the fingers into arrow engaging position while the bow is in the full draw configuration and automatic retraction of the retaining fingers when the arrow is released.

Abstract: An archery bow includes a pair of bow limbs projecting from opposite ends of a handle member, each eccentrically mounting pivotal cam members at its outer extremity. Each cam member comprises a larger diameter cylindrical cam element and a smaller diameter cylindrical cam element eccentrically joined together and having a common pivot axis which is eccentric with respect to both cam elements. A bow string for projecting an arrow comprises a working stretch and a pair of separate end segments, one detachably connected to each end of the working stretch. Each end segment extends from the working stretch and is wrapped partially around its associated larger diameter cam element, then passes through a diametric bore in the cam member to the opposite side of the smaller diameter cam element, wrapping further around the smaller diameter cam element, and extending therefrom to a connection with the opposite bow limb.

Abstract: A compound bow with a pair of limbs having a pair of improved eccentric pulleys rotatably affixed adjacent free ends thereof and adapted to receive a bowstring and a tension cable on center line of said bow, said compound bow optionally having roller cable adjustment deflectors for use with said improved eccentric pulleys to deflect the tension cables away from a sight window in the compound bow.

Abstract: A bow having a variable tension bowstring including one or more movable connecting points for the bowstring which points travel along the bow limbs from more central positions toward the limb tips as the bowstring is drawn, whereby the "drawing force," required to draw the bowstring to a fully extended position, gradually increases to a peak and then decreases and stabilizes so that the drawing force required to maintain the bowstring fully drawn is much less than the force at its peak. A pair of rollers are coupled to the bowstring and mounted for movement along the bow limbs. The rollers are connected by a member for keeping the distance between the rollers constant while the rollers ride along the limbs as a bowstring is drawn.

Abstract: An archery peep sight adapted to be mounted on the bowstring of an archery bow for aligning the path of an arrow. A disc having a centrally located sight opening is attached to the bowstring in fixed space relation with the nocking point on the bowstring. The axis of the sight opening is coextensive with the axis of the disc and is located on the central plane of the disc. A frusto-conical surface is disposed inwardly from a first end of the disc, the apex thereof being terminated at the sight opening. A semi-conical recess is formed in the second end of the disc, the recess defining a horizontal planar surface adjacent the sight opening. Bowstring receiving channels are formed on opposite sides of the disc, the angular interval between a line normal to the bowstring receiving channels and the axis of the sight opening of the disc being in the range of 38.degree.-50.degree..

Abstract: A compound bow having a center portion with a handle formed thereon, a a lower limb and an upper limb connected to the center portion and eccentrically mounted bow string pulleys mounted at the outer ends of each of the limbs for supporting a bow string. Bow string holders are supported by each of the eccentrically mounted pulleys with each of the bow string holders having a shaft that is connected at its outer end through a cable to one of the pulleys. At least a pair of bow string support members extend from either side of the shaft with the bow string support members being positioned at the inner end of the shaft. Each of the support members includes an upwardly extending outer end which is shaped and positioned to maintain a bow string between the outer end and the shaft.

Abstract: An archery apparatus including a mechanism for storing and releasing energy in multiple directions along the limbs of a limb and hand grip assembly. The mechanism for storing and releasing energy are elongated members running longitudinally of the bow limbs and on different sides of the limbs.An archery apparatus including composite eccentric members and sheaves which effect coordinated changes in direction of energy storage and release. The eccentric members are positioned adjacent the bow handle and rotate when tension is applied to the bow string, the latter being connected to the energy storing and releasing device. Sheaves may be drivingly connected to each other and to the eccentric members so that the bow limbs will deflect equally when a tension force is applied to the bow string.

Abstract: In a compound bow the eccentric wheel assemblies at the limb ends are cross-coupled by the bow stringing so that they are constrained to move in unison so that the bow is self-tuning. Each wheel assembly has three grooved wheels rotatable on a common axis. A first one of the wheels is eccentric and has one end of the bowstring connected to it. The other end of the bowstring is connected to a similar eccentric first wheel at the other end of the bow. A first cross-coupling stretch is connected between a second wheel at one end of the bow and a third wheel at the other end. A second cross-coupling stretch is connected between a third wheel at the one end and a second wheel at the other end.

Abstract: A compound type archer's bow is provided with a concentric sheave at each of the bow limb tips, and a pivotable lever with a pulley is mounted at each end of the bow handle. The levers are connected via a continuous stretch reeved over each lever and extending to the most remote sheaves on the bow limbs and then to the ends of the bowstring. A tensioning cable of fixed length is connected between each lever and its respective nearby or adjacent sheave. As the bowstring is drawn the draw force will vary due to the pivoting of the levers. When the levers pass over dead center the tension cable will engage a member on each lever and limit the maximum draw of the bowstring.