Abstract: A fletching jig can include constrictor ring that, when rotated, urges a plurality of arms supporting respective vanes toward an arrow supported in the jig to fletch the arrow. The arms can extend away from a base, which can support the arrow along a central axis. The actuator ring can be disposed around the arms. The actuator ring can include a ramp that can engage multiple guide blocks adjacent the actuator ring, each guide block configured to push a respective arm toward the arrow as the ring rotates. A related method of use is provided.

Abstract: A fletching jig, which includes two support assemblies for an arrow shaft and a vane nest, wherein an arrow shaft disposed on the two support assemblies is aligned with a vane removeably disposed in the vane nest.

Abstract: A small diameter crossbow bolt includes a small diameter shaft having a leading end with an insert to receive a point. The trailing end of shaft has a nock and adjacent fletching. The insert receives a point, such as a target point, broad head, or other point known in the industry. A circumferential spacer is positioned along the shaft between the insert and nock and moved along the shaft as needed to locate the insert for a particular weight distribution, center of gravity positioning, or to separate the spacer from nock. The insert, nock, and spacer each have a diameter substantially equal to the diameter of a prior art bolt. When the diameters of the nock and spacer are equal to the diameter of a prior art bolt, the small diameter crossbow bolt of the present invention can be used interchangeably with prior art bolts without modification to the crossbow.

Abstract: The present invention relates to a fletching device for adhesively bonding arrow feathers onto arrow shafts and quarrels, comprising a base plate (9) having a support for the nock of an arrow, retaining rods (8) extending upward therefrom at a distance from each other, an upper cover plate (12) having a passage opening directing upward and a centering means for the shaft of an arrow (1), and retaining clamps (3) arranged on the retaining rods (8) for the arrow feathers to be adhesively bonded. The fletching device is characterized in that the centering means for the arrow shaft is similar to the chuck (7) of a drilling machine or comprises an adapted chuck (7) of a drilling machine.

Abstract: An arrow fletching jig provides operation that adapts to various arrow shaft diameters and arrow fletching patterns. The fletching jig includes a clamp secured to a base. The clamp secures a fletch at a fixed orientation along the arrow shaft while the fletch is being glued to the arrow shaft. The clamp can be made rotatable to tilt the clamp with respect to the arrow shaft, so that the fletch forms a helicoid around the shaft. The clamp may provide semi-cylindrical notches at each end to maintain spacing of arrow shaft and clamp by contacting the arrow shaft along an inner surface of the semi-cylindrical notches when an end of the clamp is rotated around the shaft to tilt the clamp. The fletching jig may also include a notched arrow shaft clamp for securing the arrow shaft to the base, which is rotated to secure and release the arrow.

Abstract: An arrow fletching device with plate clamp, as well as features and aspects thereof, provides an arrow builder the means to accurately and repeatedly position fletching against the shaft of an arrow, without a spring loaded butterfly clamp component, and securely hold the fletching thereto until a bond is attained between the fletching and arrow shaft via an adhesive. Exemplary embodiments of an arrow fletching device with a plate clamp are, generally, jig apparatuses operable to precisely position an arrow shaft relative to an arrow fletching. More particularly, exemplary embodiments of an arrow fletching device comprise a plate component, in lieu of a spring-loaded butterfly clamp, useful for receiving, positioning and retaining fletching against the shaft of an arrow.

Abstract: The present invention relates to a fletching device for adhesively bonding arrow feathers onto arrow shafts and quarrels, comprising a base plate (9) having a support for the nock of an arrow, retaining rods (8) extending upward the refrom at a distance from each other, an upper cover plate (12) having a passage opening directing upward and a centering means for the shaft of an arrow (1), and retaining clamps (3) arranged on the retaining rods (8) for the arrow feathers to be adhesively bonded. The fletching device is characterized in that the centering means for the arrow shaft is similar to the chuck (7) of a drilling machine or comprises an adapted chuck (7) of a drilling machine.

Abstract: Provided is a method of manufacturing a glass substrate efficiently via prevention of foreign matter adhesion to a glass substrate as to chemical strengthening. Disclosed is a method of manufacturing a glass substrate for a recording medium possessing the step of conducting a chemical strengthening process by which a glass substrate held by a holding jig and the holding jig are immersed in a chemical strengthening solution, and 1st alkali metal ion on a surface of the glass substrate is substituted by 2nd alkali metal ion having a larger ion diameter than that of 1st alkali metal ion contained in the chemical strengthening solution, wherein the holding jig possesses a member of material made of a metal comprising an alkali metal element, or a metal film comprising an alkali metal element to cover a surface of the holding jig from the very beginning of the chemical strengthening process.

Abstract: An arrow fletching device with plate clamp, as well as features and aspects thereof, provides an arrow builder the means to accurately and repeatedly position fletching against the shaft of an arrow, without a spring loaded butterfly clamp component, and securely hold the fletching thereto until a bond is attained between the fletching and arrow shaft via an adhesive. Exemplary embodiments of an arrow fletching device with a plate clamp are, generally, jig apparatuses operable to precisely position an arrow shaft relative to an arrow fletching. More particularly, exemplary embodiments of an arrow fletching device comprise a plate component, in lieu of a spring-loaded butterfly clamp, useful for receiving, positioning and retaining fletching against the shaft of an arrow.

Abstract: A fletching system and method that allows for quick and easy attachment of a fletching member to an arrow or cross bolt shaft provides a slotted fletch holder adapted to receive a fletching member projecting therethrough and an external end cap member to provide frictional fit engagement with a flanged base portion of the fletching member wherein the flanged base portion is secured between the end cap member and an internal surface of a sidewall of the fletch holder.

Abstract: An apparatus and method for attaching a vane with respect to a shaft of an arrow or a crossbow bolt. The vane is attached to a sleeve that is positionable over an outer surface of the shaft. The sleeve has an inner surface and the shaft has an outer surface. In an attached position of the vane with respect to the shaft, an adhesive, such as a phase change adhesive, is positioned between and contacts at least a portion of the inner surface of the sleeve and at least a portion of the outer surface of the shaft.

Abstract: When clamping, compressed air within a second chamber (22) of a pneumatic cylinder (12) is discharged and fresh compressed air is supplied to a first chamber (21). Then a pressure of the compressed air within the first chamber (21) and an urging force of a compression spring (25) move a piston (20) leftwards. The piston (20) moves an output rod (26) rightwards strongly through a plurality of engaging balls (34) and a first pressure receiving member (31). When unclamping, the compressed air within the first chamber (21) is discharged and fresh compressed air is supplied to the second chamber (22). Then a pressure of the compressed air within the second chamber (22) moves the piston (20) rightwards and at the same time the output rod (26) leftwards.

Abstract: A device and method for adapting an arrow bolt fletching tool for use in fletching crossbow arrow bolts. The invention is designed to facilitate fletching crossbow arrow bolts, which are shot without nocks, utilizing a commercially available fletching tool which is designed and produced for use in fletching arrows having nocks which remain with the arrow and are shot with it. The invention provides for an end cap, containing a specially shaped indentation, to be placed in the end of the crossbow arrow bolt. A special fletching nock, with an end configured to fit within the indentation of the end cap, is inserted within the end cap for purposes of fletching the arrow only and is then removed. The fletching nock has a forked, or u-shaped, end, which engages the fletching tool in the same manner as a standard arrow nock.

Abstract: A jig used for heat treatment made from an SiC-coated silicon carbide material, wherein the SiC film is coated by the CVD method on a silicon carbide matrix in which silicon has been impregnated and wherein there are no pores with a diameter of 2 .mu.m or larger in the outer layer of the matrix within 200 .mu.m from the interface of the SiC film and the silicon carbide matrix when observed by a scanning electron microscope at a magnification of 400 times. The jig is manufactured by producing an SiC film on the surface of a silicon carbide matrix in which silicon has been impregnated by introducing a raw material compound for producing the SiC film and forming the SiC film at a temperature from 1000.degree. C. to 1290.degree. C. under a pressure from 500 to 760 Torr in a non-oxidative atmosphere. The jig exhibits superior resistance to high temperature heating cycles and excellent high thermal shock resistance required for heat treatment in semiconductor manufacturing.

Abstract: A product and method directed to attaching a fletch to an arrow shaft providing for proper alignment and ease of replacement is disclosed. The invention utilizes a fletch with or without glue held within a series of aligned holes in a hollow arrow shaft. The holes would serve to receive anchor stems which would be a part of the fletch base. In order to provide for a proper alignment and fit, the preferred embodiment envisions preparing the shaft with a jig, held in place by a removal hole in the shaft receiving a socket head cap screw which fits through and within the jig having a portion thereof which fits within the removal hole.The jig is a housing defining a series of parallel holes which serve as guides for drilling holes in the shaft to receive the fletch anchors. The fletch anchors are designed to fit within the stem holes and hold the fletch in place with or without glue.

Abstract: An arrow fletcher for use in supporting an arrow shaft having a nock and holding a fletching proximate the shaft is provided which includes a frame, an shaft support and an indexing head including a nock receiver. The shaft support may include a plurality of discretely sized openings therein for receiving any one of a plurality of differently sized arrow shafts in alignment with the nock receiver. Preferably, the shaft support is rotatably mounted to the frame so that differently sized openings may be brought into position by rotating the shaft support. The indexing head includes a plurality of selectively positionable pointers and indicia located on the body of the indexing head for identifying the angular relationship between the nock of the arrow and the fletching placements. The nock receiver is preferably adjustable relative to the indexing head body whereby the angular relationship between the nock and the fletchings may be changed.

Abstract: A fixture for archery use, and the method of using the fixture for selectively and reproducibly positioning and orienting an arrow nock to be attached to the shaft of a fletched arrow. The fixture includes frame-carried elements for supporting a lineal section of an arrow shaft. An annularly adjustable, frame-mounted sleeve telescopingly receives, in keying relation therewith, a slotted end of an arrow nock. A nock-engaging end zone of a fletching-carrying shaft of an arrow, precoated with an adhesive, is inserted axially to seat contiguously within the sleeve, whereupon the arrow shaft is rotated to bring a reference fletching of the arrow shaft into alignment correlation with a rod-like guide pointer which overlies the frame-supported shaft.

Abstract: A fletching guide for attaching pre-formed flights to arrow shafts. Fletching guides, in number equivalent to the number of flights to be attached to an arrow shaft, are splayed outwardly from the central axis of the tool. Pre-formed flights are placed in the guide and adhesive is applied along the edge of the flight which will contact the arrow shaft. The guides bearing the flights with adhesive applied are then moved to a position so as to embracingly encompass the arrow shaft and hold the flights in position until the adhesive has cured. To accommodate special circumstances, a nock aligning means within the tool is rotatingly displacable so as to selectedly position the arrow flights on the arrow shaft in a desired geometric relationship with the nock at the end of the arrow shaft.

Abstract: An archer's fletching jig is supported by an arrow, on which pre-shaped fletching material is to be arranged at preselected radial spacings of either four fletches at 90 degrees, three fletches at 120 degrees, or four fletches at the combined 75 degrees and 105 degrees, and then to be accurately adhered on the arrow shaft. Different molded part embodiments of these arrow held fletching jigs, each arranged for a specific radial spacing of fletches, all have a respective arrow upper end cap. The latter has a centrally located upstanding nock alignment pin, and the former has a centrally located hole to surround an arrow shaft. On any flat surface, the arrow lower end cap is placed to receive and to hold the nock of an upright positioned shaft of an arrow. Then respective clamp receivers are selectively spaced about the upstanding arrow shaft, and then depending ends are tapered to match a tapered upstanding receiving interior volume of the arrow lower end cap.

Abstract: An arrow fletching jig is provided for attaching feathers to an arrow shaft. The jig contains a base plate having thereon two upstanding end walls with each end wall having an opening therein to receive the arrow shaft. One of the upstanding end walls is distally attached to the base plate through a bracket and pivots about a pivot pin. The opening of the pivot wall, and hence arrow shaft, is thus capable of traveling in an arc about the pivot pin. Each end wall of the fletching jig has grooves therein for receiving a feather clamp. Utilization of the fletching jig permits the simultaneous application of two feathers to an arrow shaft, the application of a total of four feathers to a shaft, as well as the ability to use the same jig to apply left wing feathers or right wing feathers to a shaft.

Abstract: A fletching tool holds fletching in individually splayable fletching guides, precisely locating an arrow shaft in spaced relation to the fletching, while adhesive between fletching and shaft dries. Anti-stick surfaces resist excess glue upon the tool. Provision is made to adjust the distance and angular orientation of the arrow nock to the fletching. The tool is useful for field replacement of damaged fletching as well as making of new arrows.

Abstract: The invention disclosed teaches an arrow straightening machine which includes a nock or head alignment bearing attachment which allows for correction of any eccentricity or misaligmnent between the nock or head and the arrow shaft. The method discloses adhesively bonding the nock or head to the arrow shaft using the attachment device to align while the adhesive is in the unset condition.

Abstract: Apparatus for securing plural vanes on an arrow shaft. Each of the vanes has an elongate fin and a flared base adapted to be glued to the shaft. The apparatus includes a support on which the arrow is mounted for axial travel along a path. Angularly spaced about the path are plural adhesive applicators and associated vane carriers. The applicators are actuatable to apply adhesive to axially extending angularly spaced regions on the shaft. Each carrier has a slot dimensioned to exclude and to receive releasably the base and fin of a vane, respectively. After application of adhesive to the shaft, the carriers and vanes mounted releasably thereon are shifted toward the shaft to place the bases of the vanes firmly against adhesive-coated regions on the shaft. After adhesive set-up, the carriers are moved away from the shaft to disengage the vanes.

Abstract: An improved arrow fletching jig for use with a multi-vane fletch, preferably a two-vane fletch, having a bridge between adjacent vanes comprises an upstanding jig block having an upper surface adapted to support an arrow shaft, and also the bridge of such multi-vane fletch against the shaft for proper bonding and fletching. The block upper surface preferably is grooved and inclined down towards a vertical post spaced from the block and bearing preferably vertically adjustable means for releasably holding the nock end of the arrow to be fletched. The spacing between the post and block can also be adjusted to accommodate various arrows and fletches. The sides of the block preferably diverge from the block's upper surface at an angle about equal to the angle between adjacent fletch vanes when the vanes are properly aligned with the shaft. Thus, the block sides support these vanes while the block upper surface supports the bridge between the vanes.