Abstract: To simplify the manipulation of a dinghy between water and a storage location above high water mark, the dinghy is constructed so as to be circular when viewed in plan and is provided with pivotal means, such as a frusto-conical buoyant body having a bore, for receiving a handle whereby the dinghy can be rolled on its outer peripheral edge after the manner of a wheel, while being pushed, pulled and/or controlled by means of the handle. The handle may be in the form of a pole inserted by one end into the body and retained therein by rollers on radial stubs engaging with the undersurface of the dinghy floor. Other means, such as a peg loaded by a leaf spring engaging into a circumferential groove around the pole, may be provided for retaining the pole. An alternative form of handle arrangement may be in the form of a yoke providing arms which extend along each side of the dinghy and have respective pivot pegs engaging into the socket means from opposite ends thereof.

Abstract: A device for securing a piece of fabric (1), such as a boat cover, to a support surface (2) comprises a mounting element (16, 17) arranged on the support surface, and a two-part element (4, 11) fixedly attached to the fabric and arranged to co-act with the mounting element. The element (4, 11) comprises a front and a back part arranged to clamp the fabric therebetween. To facilitate the dismantling of the element (4, 11) its parts are held together by a snap action. One of the parts comprises a base plate (4) having at least two resilient walls (5, 6) which project outwardly perpendicular to the plane of the plate and which pass through an opening in the fabric and then snap into an opening in the part located on the other side of the fabric.

Abstract: The resistance of structural elastomer products, such as bearing blocks, to compressive forces is reduced by incorporating therein a plurality of small, separate, reinforcing elements of relatively hard material. Such materials include crushed rock, concrete, glass or certain slags and small metal pieces. The reinforcing elements are congregated in an interior section or core which is covered by a marginal section substantially free from reinforcing elements.

Abstract: A dust catching device according to this invention comprises a dust catching body which is constructed by shuttling in a zigzag form a certain number of split yarns made of synthetic resin or synthetic fibers bundled in a form of a string so as to form a predetermined width. The string has properties of electrifiability or electrostatic chargeability, whereby it has dust attracting power. Warps are woven into the strip of split yarns or fibers formed in the above mentioned manner at both ends as well as two places near the center of the strip, and the woven strip is cut in two along the center line thereof in parallel with the warps. The woven warps are then removed near the center line so as to obtain two continuous, right and left, dust catching bodies.

Abstract: A "roll over" type vehicle wash apparatus includes a frame which is movable on a track and which is driven between a front end and a rear end of the track. The apparatus includes a pair of front arms and a pair of rear arms which are pivotally connected to the frame. Side wrap brushes are rotatably connected to each of the front and rear arms and are rotated about vertical axes. A control circuit for automatically controlling operation of the apparatus includes five sequence control relays, FRONT IN and REAR IN switches for sensing side wrap brush position, a TOP BRUSH DOWN switch for sensing top brush position, and a HOME TRAVEL switch for sensing frame position on the track. The control circuit prevents both the front and rear arms from being fully in at the same time, thereby preventing a dangerous condition from occurring when very short vehicles are being washed.

Abstract: An improved scraping tool particularly suited for scraping ice from an automobile windshield is formed from a shell member 10 having two pairs of blades (20, 21) disposed longitudinally along the shell. One blade (21) from each pair is straight and disposed transversely across the shell (10) while the other blade (20) from each pair is arcuate in shape and spaced apart from the first blade at the center portions and joined at the distal ends (48, 48').

Abstract: A vacuum cleaner floor tool is provided which comprises a housing formed by upper and lower members which mate with one another along a single plane inclined with respect to the base plane or bottom of the lower member. An air-powered turbine motor is positioned in the housing and includes a turbine chamber for the turbine motor, and a rotary floor agitator is provided which partially extends from the housing. The agitator is coupled to the turbine motor and is driven thereby. A base plate is removably mounted on the housing and forms a portion of a wall thereof, with the agitator extending from the housing through an opening in the base plate. Air passes through the opening in the base plate into the turbine chamber. The base plate includes a ramp which extends from the base plate into the housing, where the ramp and a portion of the turbine chamber form a nozzle for the turbine motor.

Abstract: A hinge assembly between a lifting foil (12) and an associated flap (14) wherein the flap (14) includes a series of sections (20, 22). In one embodiment, each section (20,22) may be rotatably mounted by a single hinge (24) to the foil (12) and interconnected by a coupling device (34) to an adjacent flap section. Additionally, a shear key coupling device (40) may be arranged between each pair of sections (20, 22) substantially extending to the trailing edge of each section (20, 22).

Abstract: The present lock is for use on an animal gate hinge having an eye fastened to the animal enclosure and a rod fastened to the gate and extending from it across the top of the eye and then down through the eye. This lock has a lower ring which can be slid up onto the exposed lower end of the rod below the eye and a latch swiveled to the ring and extending up from it for releasable attachment to the rod between the gate and the eye.

Abstract: A hose clamp having a thickness that is maximum at its longitudinal center and is decreased symmetrically on each side of center progressively in proportion to the distance from the center until reaching end portions of uniform thickness. The band is bent into an annular shape with the ends overlapping. The ends are provided with holding portions projecting radially outward.

Abstract: A bayonet coupling nut is disclosed in which a metal element having at least one bayonet slot formed therein is mounted within a cylindrical nut body. The body may be formed of metal or plastic, and the bayonet slot-forming element is formed from a stamped sheet metal strip or a suitably formed wire. The element is inherently resilient, thus eliminating the need for a separate wave spring as in prior bayonet coupling nuts.

Abstract: A lifting hook with a safety gate journaled about the shank thereof, which safety gate is locked against rotation about the shank by a cam member mounted for pivotal movement on the safety gate and spring loaded to abut a flat formed on the shaft when the safety gate is in its closed position. The cam member is adapted to be manually pivoted out of abutment with the flat on the shaft to enable the safety gate to be opened and a preferred embodiment is described in detail in which the cam member is pivoted in the opposite direction to release the safety gate from the direction in which the safety gate is rotated to open the hook, the cam member being protected by the structure of the safety gate from accidental pivoting to release the safety gate.

Abstract: A spring retainer strip for releasably securing a liner and a gasket to the inner face of a refrigerator door. The retainer strip has a length which is generally equal to that of the gasket to be secured and a width which is somewhat less than that of the gasket. The retainer strip has a rectangular body portion with a plurality of spaced fingers extending from one side of the body. The retainer strip can be moved from a first to a second staging position to effect clamping of the liner and gasket to the refrigerator door. Return to the first staging position facilitates removal and replacement of the linear and the gasket. A method of assembly is also disclosed.

Abstract: A collar holder is provided for securely holding collar tabs and providing a decorative and ornamental effect in the form of an elongated face plate having a front and back surface, a pair of resilient jaws fixed at one end to said face plate on the back surface intermediate its length the other end of said jaws being freely movable toward and away from the back surface of said face plate adjacent its end, a plurality of interdigiting teeth on each of said jaws and the back surface of said face plate adjacent their ends, an open generally curved receptacle opening in said jaws and back surface adjacent said teeth and between said teeth and said one end of the jaws fixed to the face plate and decorative means on the top surface of said face plate.

Abstract: Control of skew, bow and yield in circularly knit pile fabric is accomplished by providing the fabric tube as knit and before longitudinal slitting with identification mark means so aligned with respect to selected longitudinally spaced courses that after the fabric tube has been slit and spread out flat for tentering, skew, bow and yield can be readily controlled in response to detecting means for viewing the identification mark means.

Abstract: The disclosure is directed to apparatus for processing of tubular knitted fabric, including an internal flat spreader and width-adjustable edge drives, typically used in connection with other processing apparatus, such as calendars, padding equipment, compressive shrinking stations, etc. The apparatus utilizes a pre-loaded, resiliently biased spreader frame which, within its operating limits, presses outwardly against adjustably movable, opposed edge drive rolls. The spreader frame, which is positioned internally of the moving fabric tube during processing operations, is capable of in-process width adjustments, without either stopping the processing line or damaging the fabric. Width adjustment of the internal spreader frame may be accomplished from a remote operator station. Moreover, the apparatus may incorporate edge-sensing means operative automatically to adjust the width of the spreader to maintain uniformity of width in the processed fabric.

Abstract: A one piece body support for use in a casket to support a body in a recumbent position. The body support is assembled from a unitary blank of paperboard and comprises a bed portion having integral length adjustable means enabling the length of the bed portion to be varied so that the body support can be adapted to be accommodated in caskets having different interior lengths. The length adjustable means comprises flexible end sections formed by transversely extending score lines. The flexible sections are foldable to vary the length of the bed portion while maintaining a generally constant vertical position for the bed portion.

Abstract: In method and apparatus for making continuous strips for lead acid batteries, a strip of lead is advanced through a plurality of successive stations such that zigzag slits are formed on the strip, either in a direction parallel to the longitudinal axis or inclined to the longitudinal axis of the strip, between belt-shaped unslitted edge portions and a central unslitted portion. The strip is then stretched by application of a continuous force substantially simultaneously to the entire width of the slit portion of the strip by successively larger vertical components normal to the plane of the strip between both unslitted edge portions and the central unslitted portion. Simultaneously therewith, frictional resistance is applied to the zigzag slits so that the strip forms a substantially V-shaped cross-section vertical to the advancing direction of the strip to form the grid cells. The V-shaped strip is then leveled and flattened.

Abstract: A method of manufacturing a cathode assembly for use with an electron tube in which the cathode assembly is comprised of a metal cap composed principally of nickel Ni and welded to a cathode sleeve composed principally of nickel Ni, an electron emissive coating layer formed on a surface of the base metal, and a supporting member welded to the cathode sleeve. The method comprises the step of treating or conducting at least the metal cap under a solution heat treatment.

Abstract: Disclosed is an attachment member for a multiple-spindle head, which is used for attaching the multiple-spindle head to a quill of a drilling machine, a tapping machine or the like. This attachment member is attached to the quill through a cylinder having an attachment flange, and the attachment member includes a driving gear which is arranged so that when the attachment member is attached to the quill, the gear falls in engagement with a spindle in the quill and it is rotated by the spindle. The attachment member is used in the state where it is built in the multiple-spindle head, and in this state, gears for rotating drills, taps or the like attached to the multiple-spindle head are engaged with the driving gear through intermediate gears. At the time of exchange of the multiple-spindle head, the head is dismounted from the cylinder together with the attachment member, and another multiple-spindle head with which another attachment member has been combined in advance is attached to the cylinder instead.

Abstract: An improved gear burnisher for removing minor gear tooth defects by burnishing is provided by rotating the work gear to be burnished in mesh with three different burnihing gears, at least one of which is powered. The improvement consists of burnishing the work gear with one burnishing gear that has a low operating pressure angle, another that has a high operating pressure angle and a third burnishing gear that has an intermediate operating pressure angle. The third also preferably has a generated pressure angle that is 0.5 degrees or more greater than the generated pressure angle of the work gear to provide a concentrated radial pressure sliding load at the tips of the teeth of the work gear.

Abstract: A squeeze roll for squeezing liquid from cloth being treated in a spread state. The squeeze roll is adapted to suitably adjust the widthwise distribution of the squeeze effect on the cloth, according to the need.

Abstract: A composite horizontally split casing includes an inlet end having upper and lower cast inlet end sections, an outlet end having upper and lower cast outlet end sections, and separable upper and lower semi-cylindrical shell sections extending axially between the inlet and outlet ends. The upper semi-cylindrical shell section is welded at opposite ends respectively to the upper inlet and outlet end sections to form an upper casing half. The lower semi-cylindrical shell section is likewise welded at opposite ends respectively to the lower inlet and outlet end sections to form a lower casing half. External bolting flanges on the upper and lower casing halves provide the means by which the upper casing half is mounted on the lower casing half.

Abstract: A tool and method are disclosed for removing a valve core or element from a valve which is under pressure without requiring that the system be shut down and the pressure relieved. A tool having a passage therethrough sized to accommodate the valve element to be serviced is bolted over the valve and the valve element is drawn therein and the tool closed to isolate the passage and the element from the pressurized system thereby allowing the element to be repaired or replaced.

Abstract: An apparatus for disassembling a clutch drum of an automatic transmission is provided. The apparatus is a tool having arcuate feet to engage a large area of the plate of the clutch drum assembly, a pair of legs to hold the feet, and a beam along which the legs are slidable. A shank centrally of the beam is to be held by the chuck of a press, and the press is used to compress the springs. The clutch drum is allowed to be placed on the table of a press, the tool is put in place on the plate, and the press can quickly compress the springs while the locking ring is removed.

Abstract: A skate wheel disassembling and assembling apparatus including a frame having a wheel support platform adapted to support a skate wheel in a bearing-removal position, a push-pull member mounted on the frame for back and forth movement along an axial path and provided with a hooked tip at one end for engaging a bearing seated in a skate wheel in the bearing-removal position, and provided at the other end with a pusher heat for reinstalling the bearings in the skate wheel. When a skate wheel is positioned on the wheel support platform in the bearing-removal position, a retracting movement of the push-pull member causes the hooked tip to engage the bearing extracting it from its bearing seat. A wheel guide and support assembly is mounted on the frame for receiving and supporting the unassembled components of the skate wheel and is pivotal to a position where the components are in alignment with the push-pull member.

Abstract: An inverted press for producing multiple drawn metal containers combines in one press the functions of cupping and drawing presses. The press includes a blanking and cupping station and several drawing and redrawing stations, disposed one adjacent the other and rendered serially operative by a vertically reciprocable slide assembly. At each stage of operation the material, semifinished article or finished article is under complete control. A method for producing a drawn container by multiple forming and reforming of a drawn article, is also provided.

Abstract: A tubular filler rod or filler wire the metal sheath of which is composed of two members, to wit, an outer seamless tube and an inner tube consisting of a strip bent into tube shape and confining a compacted powder core. Also, a method of manufacturing a tubular, powder-cored filler rod or filler wire in which a metal strip is bent to form a trough which first is fitted with a powder composition and then closed to form a tube enclosing a core of the powder composition; the tube is slid into a second, seamless tube which is then submitted to a cold-drawing operation.

Abstract: An electromagnetic clutch includes a pair of rotatable driving and driven members adapted to be electromagnetically coupled together and uncoupled from each other. At least one of the driving and driven members comprises a pair of concentric annular members both made of a magnetizable material and having opposed and radially spaced peripheral surfaces in which annular grooves are formed, respectively. An annular bond member of a non-magnetizable material is swaged into the annular space between the annular magnetizable members and thus into the annular grooves to mechanically connect the magnetizable members as well as to magnetically disconnect them from each other.

Abstract: The application discloses new modes of changing the length of pinch roller fed wedge material that involves transmitting motive power from a power shaft to a driven pinch roller through a power train that includes at least one pivoting lever, the effective length of which is quickly changed by moving a pivot shaft which supports such lever. Power is supplied through a first link from a main drive shaft to a pivoting slider, and then to a rocker arm or a lever which rocks about a pre-selected pivot point. Power is transmitted from such lever to a rack or other driving mechanism which then supplies motive power to a pinch wheel assembly. The pivot for the previously mentioned rocker arm is adjustable, and thereby the relative effective lengths of the rocker arm on either side of the pivot may be selectively varied in order to change the extent of rotary movement of the driven pinch roller even though the first drive link continues to travel along a fixed path.

Abstract: The present invention provides a silicon gate FET and associated integrated circuit structure in which a second level of polysilicon is selectively oxidized to provide insulating regions where desired. Regions of the polysilicon which were not oxidized are suitably doped to function as electrical interconnects to the source and drain regions in the substrate and to the gate. In the preferred embodiment, a metallic interconnection is made between the gate and drain or source region with the second level of polysilicon.

Abstract: A process is disclosed for the production of a MIS field effect transistor having an adjustable, extremely short channel length. The effective channel length is set by superimposing at least two implantation steps employing differing implantation energy and doses. A gate electrode which possesses vertically etched edges is used as an implantation mask for the source implantation and drain implantation. The process allows a MOS structure having an arbitrarily small effective channel length to be constructed by exploiting the lateral scattering which occurs during the ion implantation without influence by mask tolerances. The process corresponding to the theory of the invention provides the possibility of constructing a DIMOS-similar transistor having typical structural dimensions in the region of 1 .mu.m and less.

Abstract: A thermally actuatable electrical switch construction having a deformable contact member normally disposed in electrical contact with a stationary contact member while a temperature sensitive member of the construction is in a solid condition and being deformed out of contact with the stationary contact member by deforming means of the construction when the temperature sensitive member is rendered non-solid by sensing a temperature above a predetermined temperature, the deformable contact member being deformed in a direction toward the temperature sensitive member by the deforming means when the temperature sensitive member is rendered non-solid and being carried by a lead that projects into the switch construction whereby the lead and the deformable contact member define a subassembly that is adapted to be initially inserted into the construction to be secured thereto.

Abstract: A tool for installing shrink fit parts formed of a material which is dimensionally stable over a wide range of temperatures having a locating surface on which a part to be shrunk is clamped and having a chamber adjacent the locating surface, which is filled with a cooling media as the part is being shrunk in a source or vat of cooling media, to maintain the part in its shrunken condition after removal from the cooling media. A valve is provided for removing the cooling media from the chamber after the shrunken part is positioned precisely in a second part so that the shrunken part will warm and expand into the second part to form a shrink fit therewith.

Abstract: An alpha-numeric display device having a modular structure for placement side-by-side in vertical and horizontal formats to present symbols, words and phrases. The device functions as a stand-alone peripheral, appearing to a controller, such as a microprocessing device, as a random access memory. In particular, the device is operative to receive a standarized 7-bit ASCII code and to translate it to a multiple segment display whereby it can be continuously presented. The device provides a small, relatively low-cost alphabet and number display with a built-in electronic interface to a microprocessing unit permitting word communication to be incorporated into compact equipment, such as hand-held terminals and portable display devices.

Abstract: A self-clamping cutting tool which includes a handle (11) attached to a C-shaped housing (12) and has an opening (13) sized to admit a pipe (23). Rotatably mounted within the housing is a C-shaped tool body (24) carrying a set of clamping rolls (27, 28 and 31) and two support rolls (51 and 52) and an edged cutting roll (64). The support rolls are disposed to one side of the axis (29) of a pipe and the cutting roll is disposed to the other side of a pipe axis so that these rolls contact a pipe at three circumferential points. Cutter advancing apparatus (63, 65, 66, 67, 68) advance the cutting roll toward the support rollers. The support rolls and cutting roll are rotatable independently of the C-shaped housing. A one way ratchet mechanism (41, 43) disposed between the C-shaped housing and the C-shaped tool body permits operation by movement in one rotational direction about the pipe axis. In another embodiment, the tool body is rotated by a power driven mechanism (80- 87).

Abstract: A loop for a tape measure consists of a one piece element having a loop portion and an integral tape connecting portion. The tape connecting portion has at least one pair of flexibly connected flaps which serve to secure the loop to the free end of a measuring tape. An integral "living" hinge connects the flap portions and the loop portion.

Abstract: A three-axis coordinate inspection machine. A pair of parallel Z axis rails are mounted atop a bearing plate having an upwardly facing horizontal bearing surface. A single X axis rail has opposite ends slidably and bearingly mounted to the Z axis rail. The X axis rail extends through a carrier which is supported by the bearing surface of the bearing plate. A vertically extending column is mounted to the carrier and slidably holds in the vertical direction one or more inspection probes which may in turn be moved along the length of the X axis rail and Z axis rails.

Abstract: A new and improved sighting device and range-finder and sighting device combination wherein the elemental sighting devices incorporate a sighting screw disposed within and through first and second separate mounting members having corresponding aligned apertures, one of the sighting members incorporating interiorly threaded means. The sighting devices themselves are constructed and arranged for gripping or clamping onto an elongate member and are selectively adjustable thereon. In a preferred form of the invention, irregular mating surfaces of such elongate member and the respective sighting devices used, prevent inadvertent slippage of such devices on the elongate member. The split-construction of the respective bodies sighting members enable users to install easily certain range indication markings as necessary, this obviating prior manufacturing expense. Fore and aft sighting-device mounting is provided.

Abstract: An adaptor for mounting one instrument, such as an electronic distance measuring device, atop another instrument, such as a telescope or theodolite, for movement together about a horizontal axis with a base member attached to the upper device and presenting two downwardly facing cam surfaces and support members engaging the cam surfaces for vertical movement against springs to counteract the forces produced by the upper instrument as it pivots.

Abstract: The invention relates to an apparatus for processing a powdered or particulate product forming a vibrating fluidized bed supported by a thin, perforated bed plate which is vibrated while gas is blown upwardly through the perforations of the plate.The bed plate which is made from thin sheet metal is provided with parallel corrugations extending transversely to the direction in which the fluidized product is moved along the plate. The corrugations impart a desired stiffness to the plate and in order to promote removal of residual product from the plate when supply of product to the plate has been terminated, the openings in the plate may be formed so as to direct gas flows supplied therethrough in the same general direction transverse to said corrugations towards an outlet of the apparatus.

Abstract: A dryer for the drying of clothing and other articles by use of a vacuum. A vacuum is applied to the internal chamber of the rotating drum by means of a swash plate which rotates simultaneously at an inclined angle with respect to the rotational axis of the drum. Suction assemblies, which include the use of one-way valve assemblies are provided between the internal chamber of the drum and the swash plate. A motor is to cause rotation of the drum which also simultaneously rotates the swash plate. The air and moisture particles from within the internal chamber of the drum are discharged into the ambient by the suction means.

Abstract: A shoe incorporating dynamic Orthotic means which adapt to the foot in a prescribed manner, controlling heel "strike" and weight bearing loads, establishing a cup-shape to "catch" the heel and foot to stabilize it, balancing and maintaining the sub-talar joint in a neutral attitude and the mid-tarsal joint locked, enabling the foot and ankle to maintain optimum integrity as an efficient support and propulsion system, and resisting the symptomatic tendency for the sub-talar joint and foot to overcompensate and overstress the anatomy.

Abstract: This invention involves new and unique apparatus suitable for safely and quickly removing a row of bare root nursery trees. More particularly, this invention teaches a lightweight and raised frame which supports a plow or blade, a power source, a seat for the operator and the controls. Weighted wheels are attached to the lightweight frame by four support members such that the wheels straddle a row of trees to be removed as the frame moves over the top of the row of trees. A U-shaped blade or plow is forced into the earth such that the blade cuts under and around the trees as the apparatus moves along a row of trees and the blade moves under the row of trees. Thus, the trees can be easily removed and the dirt shaken therefrom after the apparatus has moved past. According to one embodiment, a power source such as a small gasoline engine drives a hydraulic pump which is then used to hydraulically actuate the blade and to provide hydraulic power to four small hydraulic motors for independently driving the wheels.

Abstract: A ladder pump for use with a hydraulic dredge to increase the main pump efficiency comprises a casing and a vaned impeller located in the casing and mounted for rotation about a normally horizontal axis transverse to the ladder. The casing has an inlet and an outlet defining respective axes lying in a common plane perpendicular to the impeller axis and defining a deflection angle therebetween, with approximately 60.degree. being typical. The diameter of the impeller and the inner dimensions of the casing together define a substantial clearance over at least that portion of an impeller vane's travel between the inlet and the outlet, so that large solid objects entering the pump may pass under the impeller and out the pump outlet. The impeller may have substantially rigid vanes, or the vanes may be flexible. The ladder pump fits in-line with respect to the suction pipe, and has an axial extension little wider than the pipe itself.

Abstract: There is disclosed in the present application an identification badge holder made of a single piece of transparent plastic sheet folded so as to enclose and protect one or two cards which are visible from both sides of the holder. The present holder includes an integral flap having a sawtooth shaped edge and inwardly bent corners to retain the badge on a wearer's clothing and is sufficiently thin, flexible and compact to be carried in owner's wallet.

Abstract: A card holder for visibly and removably mounting on an interior vehicle surface a card bearing maintenance reminder information. The holder includes a film-like sheet containing a transparent central area dimensioned for viewing the information on the card, and a strip of adhesive material surrounding the transparent area for mounting the holder on the surface, such that the holder forms a card-accepting pocket dimensioned to snugly hold the card removably in place when mounted on the vehicle surface.

Abstract: A partitioned structure comprising an open topped container and a plurality of dividers having sides positioned within the container. The container has horizontal interior side channels on either side thereof so that each divider having at least one tab disposed on each side thereof slides within one of the horizontal channels and permits movement of the divider relative to the container. Each divider has a projection extending above its top on which information is placed.

Abstract: A safety device for a bolt action firearm has a laterally extending lock pin which is movable laterally to engage a recess in the cocking lug of the striker to prevent the striker from moving forward despite sear release by the trigger mechanism. An operating lever is movable rearward from a forward position in which the firearm may be discharged, rotating a helical cam which moves the lock pin laterally into the recess in the cocking lug. When the lever is moved further rearward, a cam on the operating lever pivots a blade upward into a groove in the bolt to prevent rotation of the bolt.

Abstract: A device for catching crabs is described comprised of a frame portion and attached net structure. The frame portion, comprised of three U-shaped members, can be deployed to a functional state having a perimeter from which said net structure is suspended, and a handle adapted to receive a tether line used to lift the device vertically from a body of water. When placed in a collapsed state for storage, the three frame members lie closely adjacent each other, thereby occupying considerably less space than the device in its deployed state.