Abstract: An apparatus for clearing and cleaning of engine cylinder exhaust ports wherein access is gained through the spark plug receiving bore. The apparatus consists of a unitary cleaning tool having a handle end and a bent tool end extending at approximately 90.degree. from said handle end, the tool end of the implement having a terminus of selected diameter and posteriorly extending lip formed thereon. In addition, the device utilizes a template which is readily affixed to the engine cylinder head to provide manipulative direction in cleaning selected ones of the exhaust ports of the engine.

Abstract: A brush including a molded head that includes the bristles and a handle holder. The handle is made in two pieces one of which slips into the other for securing the handle in a retracted or an extended position. A collar in combination with the handle secures the handle in its retracted or extended position.

Abstract: The disclosed hot water extraction cleaning machine employs a conventional canister-type wet/dry vacuum cleaner having a suction tool communicating through a wand and a suction hose to a recovery tank in the vacuum cleaner. Hot cleaning solution, held in a supply tank or reservoir mounted on the wand, is pumped under pressure to a spray nozzle, positioned adjacent to the suction tool, in order to spray a jet of atomized cleaning solution onto an area of the carpet material or floor material to be cleaned. As the operator draws the suction tool across the sprayed area, the cleaning solution, with entrained dirt from the material, is sucked into the recovery tank. A hand-controlled valve permits the operator to control the flow of cleaning solution to the spray nozzle.

Abstract: There is disclosed a suction cleaner having a motor, a body portion housing the motor, and interengageable attachments adapted to be attached to the body portion for cleaning operations requiring different motor speeds. A safety switch is provided within a headlight shroud. Attaching elements are provided on each attachment so that the attachment may be affixed to the body portion of the cleaner. The attaching members are covered by the headlight shroud and are exposed by the shroud when the shroud is pivoted to an open position. The safety switch has a first switch position which disconnects the motor from an electrical circuit and a second switch position which causes the motor to run at a relatively slow speed and a third switch position which causes the motor to run at a relatively high speed. Each attachment is provided with a pin which actuates the safety switch to run at either a high speed for off-the-floor cleaning operations or a low speed for on-the-floor cleaning operations.

Abstract: Door hinge, including two mounting plates each having at least one eye-shaped extension formed thereon, the extensions being alternatingly disposed along a common hinge axis and having inner bearing surfaces and lateral contact surfaces spaced apart from each other, a hinge pin disposed in the extensions on the bearing surfaces for holding the extensions together, and a plastic covering disposed on the extensions and covering the bearing surfaces and the lateral contact surfaces.

Abstract: Over-center hinge for thin-walled doors of cabinets, especially of bathroom mirrored cabinets, having a shallow, door-related hinge part which is articulately joined to a supporting arm fastenable to the supporting walls of the cabinet, and which can be fastened, preferably by cementing, in a matching recess provided on the inner side of the door. A molded piece (36) is removably fastened to the door-related hinge part (12) and bears a tongue (34) which, upon the hinge's closing movement, extends into the path of an engaging surface (pivot eye 15) provided on the supporting arm (18) and can be displaced resiliently against a spring force by this engaging surface, and on which the engaging surface slips during a part of the closing movement beyond a dead-center position on one side of which the tongue (34) exerts on the supporting arm (18) a force in the hinge-opening direction and on the other side of which it exerts thereon a force acting in the hinge closing direction.

Abstract: Fowl picking apparatus provided with at least two rows of picking elements on both sides of the path of the fowl which carry picking discs with rotation axes displaced with respect to each other in the respective rows, such that during operation the circles described by the ends of the picking fingers at least touch each other, preventing fowl portions in getting behind the picking elements.

Abstract: The invention relates to an apparatus for trimming molluscs, especially squid. According to the invention, the apparatus comprises a number of successive stations of treatment, consisting of (a) holding means (8) for holding the squid during trimming; (b) a cutter (37) for cutting the tentacles of the squid; (c) means for loosening (41) and gripping (43) of the head and viscera of the squid and extraction of these; (d) means (46) for removing part of the tissue from the inside of the mantle of the squid at the part where the pen is located; (e) means (54) for gripping and extracting the pen; and optionally (f) means (58) for removal of the squid from the holder (8); and (g) means (1) for transport of the squid between the treatment stations.

Abstract: A clamp connector formed of an elastically deformable but sufficiently plastic material to tie wires, rods, or shrubs together. A yoke is formed from a U-shaped member which is adapted for gripping around a rod, and a web is connected with the yoke. Three seats are provided which are aligned to receive the tie wire, rod or branch of a shrub, and together with the yoke provide for the interconnection of two of the wires, rods, or shrubs together.

Abstract: Bonded nonwoven fabrics are softened by impinging the fabrics with a fluid jet.

Abstract: A stepped combination apparatus comprises transferring means for moving a bundle of component wires arranged in plural rows and plural lines in the longitudinal direction; pushing means for pushing the component wires to the line direction to put out a component wire at the opposite side; shifting means for shifting the component wire which is put out by the pushing means, to the other row; and stepped-bending means for stepped-bending the component wire which is put out. The operation time can be significantly shortened and a U-shape bundle of component wires can be treated by the apparatus.

Abstract: A method for manufacturing a spring ring to be electroplated in subsequent processes wherein, on the occasion of assembling a movable core member to open and close a opening of a link body and a spring to push the said movable core member in a direction to close the said opening in a circular and tubular link body opened at one end and brazed with a ring on another, the spring is previously coated with a electrically non-conducting film by means of a coating treatment and then assembled into the said tubular link body.

Abstract: A tool for installing scarifier teeth in a hole in a socket attached to a drum, as by using an identical pin and air hammer as can be used for removing the teeth through an aperture at the rear of the socket. The tool has a circular hole with an inner bevel at an angle of not less than 321/2.degree. but preferably 35.degree. to the center line of the hole, while this bevel engages an outer bevel of a body of the tooth adjacent a shoulder to which weld metal attaches a tip of relatively hard metal to the body, or a flare or skirt of the body adjacent a stem of the tooth. The aforesaid holes in the body may be of different length and different diameter, depending on the distance from the point of the tip to the bevel or the flare or skirt. The opposite end of the tool is provided with a hole to receive a pin which may be impacted by an air hammer, while a shim may wedge the pin in this hole to prevent the tool from flying off the pin if the air hammer is accidentally triggered.

Abstract: A method is described for sequential replacement of the lining in a rotating mill according to wear of the lining. Generally, such a lining consists of adjacent zones parallel to the rotational axis of the mill, the height of these zones varying periodically in the peripheral direction of the mill. According to the invention rubber beams of equal width are used, and for the replacement operation completely fresh beams of only one height are employed, this height representing the highest one of only a few preselected categories of beams. Upon removal of worn beams, these are reassorted according to the selected categories and those beams worn-out and unfit for even the lowest category are discarded. Thus, the reassorted beams not rejected can be reused properly positioned so as to maintain a suitable variation of the beam height in the peripheral direction of the mill, and only one height of fresh beams need to be held in stock.

Abstract: A lock follower, particularly a handle or pressure follower, comprises a hub part consisting of a machined rod-like or tubular material and an arm part consisting of a punched sheet-metal material. The parts are rigidly joined together by flow of material from the arm part to a peripheral groove in the hub part. Preferably the hub part exhibits in the neighborhood of the groove a portion of smaller diameter than the main portion of the hub but of larger diameter than the hole for the hub part in the arm part. Said portion is pressed so far into the hole in the arm part while deforming the material defining the hole that the arm part abuts an abutment in the hub part. Further, the portion of the hub located between the peripheral groove and the abutment preferably has axially extending ridges around the periphery thereof to facilitate flow of material and rigidly securing the two parts together in both axial and circumferential direction.

Abstract: A remotely controlled tool for working inside a steam generator hemispherical head on tubes and tube holes and moving along orthogonal x and y axes to conform to the tube layout pattern in the tubesheet.

Abstract: An automatic tool changer for a machine tool having a rotary toolhead with cross-feed slide includes a tilt unit having a tool socket which is pivotal between a first position, parallel to the axis of a machine tool storage magazine to permit loading or unloading of a machine tool carrier into the tool socket from the tool storage magazine by a transfer arm, and a second position parallel to the axis of the rotary toolhead. A tool changer arm, having tool grippers at opposite ends, moves along and rotates about an axis parallel to the rotary toolhead to exchange the tool carrier in the tool socket of the tilt unit with the tool carrier in the rotary toolhead, thereby permitting a new machining operation to be performed by the machine tool as well as storage of the machine tool carrier previously held in the rotary toolhead.

Abstract: A contact detecting apparatus for detecting the contact of a workpiece and a tool which comprises a coil mounted on the periphery of a spindle head and connected to an AC power source for generating an induced current in a first looped secondary circuit formed by the workpiece, a work table, a machine bed, a column, a spindle head, a tool spindle and a tool in the tool spindle when the workpiece and the tool are moved relatively into contact with each other, and a second looped secondary circuit formed by a tool change device, the tool, the tool spindle and the spindle head when a tool change operation is performed. A detector is connected between the AC power source and the coil for detecting a change in an electrical signal caused by contact between the workpiece and the tool or contact between the tool change device and the tool to output a contact detecting signal. Another detector is provided to detect that a contact detecting signal is not generated, even if a tool change operation has been performed.

Abstract: Disclosed is an improved method of growing an epitaxial layer preventing auto-doping from a doped region exposed to a surface of a semiconductor substrate. A surface of a semiconductor substrate of one conductivity type is covered with a mask having a predetermined opening. Then, impurity atoms are doped into the substrate through the opening to form a region of the other conductivity type. An epitaxial layer of one conductivity type is deposited over the exposed surface of the substrate with another mask which covers the entire surface of the region and has an area larger than that of the exposed surface of the region. The latter mask prevents auto-doping from the region of the other conductivity type. The process is usable for controlling, for example, channel widths of field effect semiconductor devices uniformly and precisely.

Abstract: A method for forming shallow low leakage ion implanted source/drain regions in an integrated circuit environment including semirecessed oxide isolation regions in which high parasitic device threshold voltages are provided by an oxidizing/annealing post implant process. Arsenic ions are implanted into a recessed oxide isolated substrate followed by a wet oxidation process and a non-oxidizing annealing process for a period of time to provide a passivating dielectric over low leakage source/drain regions of less than one micron junction depth and to provide adequate high temperature annealing to reduce the charge effects in the oxide isolation regions caused by the implanted arsenic ions.

Abstract: An ohmic resistor of the bulk resistance type having a large mass of semiconductor material and remarkably stable resistivity at the operating temperature is made up of a rectangular parallelepiped of silicon doped by at least two substances, one substance being of the acceptor type and the other being of the donor type. The resistor then has much higher stability within the temperature range of -50.degree. C. to +200.degree. C. A second substance of the donor type (consisting of caesium, for example, while the first consists of gold) permits a further improvement in stability.

Abstract: The method of making a force-responsive instrument of the type including a tensioned wire of round cross-section to be vibrated perpendicular to the wire axis, wherein said instrument includes field-producing magnetic means operable with said wire to induce vibration; said method including the steps of:positioning said wire in a magnetic field directed perpendicularly to the wire axis;vibrating said wire by electrical means connected to the wire and arranged to develop interaction with said magnetic field;developing an electrical signal proportionately responsive to the magnitude of vibrations of said wire;effecting relative rotation between said wire axis and said magnetic field while maintaining constant the intensity of said magnetic field;making measurements of the amplitude of the signal developed by said wire;determining from said measurements the position of said wire relative to said magnetic field providing maximum signal amplitude; andfixing said wire in said instrument in said position relative to

Abstract: A component inserting apparatus for inserting electrical and electronic components into printed circuit boards includes a chuck element for gripping a body portion of a component having a plurality of lead wires extending outwardly therefrom in the same direction, an insertion guide member which contacts outer sides of each of the lead wires so as to regulate the lead wires to be positioned at predetermined positions, thereby to guide the lead wires into corresponding openings formed in the circuit board, a vertically movable guide shaft member for rotatably supporting the insertion guide member, and an insertion shaft member coupled with the chuck element so as to be movable in the same direction as the guide shaft member and also relatively with respect to the guide shaft member.

Abstract: An improved tool for wrapping wire around an electrical terminal to make an electrical connection. The tool includes a bit and a sleeve for receiving the bit. One end of the bit has a connecting member for coupling the bit to the chuck of a hand-held drive motor. The opposite end of the bit is provided with a tip having a recess axially aligned with an axially extending groove formed in one side of the main body of the bit. A discontinuity between the recess and the groove is defined by a ridge having a pair of relatively convergent edges which extend toward the axis of the bit and terminate at a notch axially aligned with the bottom of the groove in the bit body. A crescent-shaped projection extends axially outwardly from one side of the tip to wrap the end of the wire against the terminal. The sleeve has an enlargement at the end near the tip for receiving one end of a wire and guiding it to the groove and outwardly through a side window in the sleeve before rotating the bit.

Abstract: A slide slidably mounted on an arm secured to an indexing plate has a slider seat for supporting thereon a slider body with its pull tab inserted in a slot defined between the slide and the arm. The slider pull tab is immovably held in the slot by a ball mounted in the arm and spring-biased into an aperture in the pull tab. Upon holding of the pull tab, the slide is slightly moved under the resiliency of a spring to lift the slider body until a locking pawl to which the pull tab is connected is withdrawn out of a slider guide channel. A block mounted on a fixed frame contains a spring-biased presser which, upon lateral alignment with the spring-biased ball, forces the ball into locking engagement with the pull tab in the slot, thereby locking the slider for application to a pair of slide fastener stringers.

Abstract: A method of applying microelectronic circuit elements, such as high definition thin-film microwave components, typically to a lower definition thick film or printed circuit board substrate. The method described involves the formation of a high definition microwave filter on the surface of a transparent, flexible carrier substrate using thin film deposition techniques, and the circuit element is then adhesive bonded face down in an appropriate position in a thick film circuit on the surface of a second, permanent substrate. The thin film circuit element is formed with contact areas which overlap cooperating portions of the thick film circuit on insertion of the circuit element to provide electrical connections. The carrier substrate may then be removed, eg by dissolving, and the overlapping contact areas may be permanently bonded together. Thus only the high definition parts of the micro-circuit need be fabricated using expensive thin film technology.

Abstract: A wear-resistant reinforced liner for a center plate structure of a railway vehicle and method of making same are provided wherein the liner is defined of a polymeric material and has a top surface adapted to engage a railway body center plate and a bottom surface adapted to engage a railway truck center plate with dual-purpose means embedded in the polymeric material which serves as a matrix therefor with the dual-purpose means having a top surface portion which comprises a top surface of the liner and a bottom surface portion which comprises a bottom surface of such liner; and, the dual-purpose means provides reinforcement for the liner and a comparatively low electrical resistance path through the liner with each surface portion in contact with an associated center plate.

Abstract: Disclosed is a shaving apparatus having a shear plate provided with hair-entry apertures and a cutting member drivable relative to the shear plate. The cutting member is formed with cutters each having an associated lead cutter slidingly engaging the guide wall of its respective cutter. The end of each lead cutter has a projection terminating in a cutting edge for penetration into a hair, the thickness of such projection permitting only partial penetration of the lead cutter into the hair. Such penetration is advantageously further limited by forming the front wall of the lead cutter perpendicular to the end wall of its associated cutter.

Abstract: A gauge for checking sizes of mechanical parts, particularly a plug gauge having a support, two measuring arms movable with respect to the support and a transducer for providing a signal responsive to the mutual position of the measuring arms. The measuring arms have tubular end sections defining transversal holes for housing stems carrying feelers for contacting the surface of the part to be checked. Screws coupled with threaded holes axially obtained in the tubular end sections adjustably lock the stems.

Abstract: A hand tool for locating and measuring the location of inaccessible rafters and studs from the outside of a roof or wall. The tool has a base plate and a tubular guide fixedly mounted at an angle to the base plate. A measuring rod appropriately marked with measurement indicia is a sliding fit into the bore of the guide. The tool is used by drilling a hole through the roof or wall, using the tubular guide as a drill guide, and then inserting the measuring rod into the guide and moving it until the tip of the rod encounters the side of a rafter or stud. After noting the measurement indicated on the rod, the rod and base plate are removed. The noted measurement will be the distance from the center line of the drilled hole to the centerline of the rafter or stud.

Abstract: A method and a device for checking the dimensions of vehicles, preferably in connection with carrying out alignment work thereon. The method and the device use a reference frame (1) which is suspended from the chassis of the vehicle. Indicators (5, 12) are disposed at selected check points in the vehicle to indicate a possible deviation in position from a desired value at an individually selected check point on the vehicle, the nominal position of which is known and which is characteristic of the vehicle. The indicators comprise first indicator elements each in the form of a vertically adjustable lead rule (12) which is suspended in said check point or in points related thereto outside the vehicle, and second indicator elements in the form of horizontally adjustable reference pins (5). The distance between a selected reference point (12a) on the first indicator element and a selected reference point (5a) on the second indicator element constitutes a measure of the deviation sought.

Abstract: An optical presetter for precision alignment of a tool on a machine turret to be positioned on a lathe or the like. The presetter includes a bale support, a light source, an adjustable carriage, and a viewer with a reference. When a tool is mounted on a turret and the turret is mounted on the carriage with the tool in the light beam; the tool can be precision aligned by moving the tool relative to the turret and noting the change of the tool image on the viewer.

Abstract: A plumb guide for facilitating the laying of end bricks or other masonry units of a tier successively in true vertical alignment without the use of spirit levels and the like. The guide is adapted to be removably attached at selectable points on the usual bricklayer's gage line. A flat surface of the guide is disposed perpendicularly to the gage line, serving as a reference for the placement of end units in successive layers about windows, fireplaces and the like.

Abstract: Disclosed is an apparatus and method for freezing and preserving in a viable state microorganisms wherein droplets are formed from an aqueous solution having suspended therein the microorganisms, the droplets are exploded into a plurality of smaller droplets by applying an electrical force which counteracts the surface tension of the droplets, and the microorganisms, with a substantial portion of the solution removed therefrom, are frozen in a moving bath of liquid refrigerant. The frozen droplets are thawed or alternatively dried by sublimation.

Abstract: A process is provided for the separation of a gas and a condensable vapor present in the gas. The vapor-containing gas is contacted in a condensation zone with a heat-exchange fluid to cool the gas whereupon the vapor condenses and is collected as condensate. The condensate is then contacted with the heat-exchanger fluid to cause it to vaporize.

Abstract: A portable, lightweight and compact food dryer. The invention comprises a collapsing frame and tiers of lightweight trays enclosed by a net housing and covered by a heat absorbing roof. The collapsing frame includes a metal hook protruding vertically out of the roof, a metal collar providing support for the net housing, and several support straps. The support straps attach to the shank of the hook at the apex of the roof, thereafter passing out over the metal collar and vertically down inside the net housing. Preferably, all but the last tray attach at regular intervals to the vertical straps. The last tray preferably rests on the base of the net housing.In use, the food dryer may be suspended wherever deemed most convenient. A zipper in the net housing allows easy access to the trays which may be removed and cleaned whenever desired. When not in use, the dryer is readily collapsed for convenient storage.

Abstract: An overboot arranged to be worn over a shoe or other footwear and formed as an integral unit. The overboot includes an upper portion, a sole portion and a heel portion. The sole portion includes plural elongated cleats extending across the full width of the sole and comprising raised members having grooves therein. Plural undulating ridges project up slightly from the grooves. The space between adjacent cleats is in the form of grooves. Each of the cleats is disposed at a predetermined angle to the longitudinal axis of the sole. The angle is approximately the angle made with the axis by a line extending from the second to the fifth metatarsal head of the wearer's foot to facilitate the flexure of the sole as the wearer walks in the boot, while providing for good traction and the releasement of soft adhering materials, such as mud, slush, snow, etc., from the boot sole.

Abstract: A plow caddy for facilitating attachment of a plow, such as a snowplow, having a blade and a connecting frame provided with a rear connecting portion to a vehicle having an elevated attachment portion. The caddy includes a wheeled support having front and rear portions. In the illustrated embodiment, a channel is provided on the front portion for removably receiving the lower edge of the plow blade for supporting the plow blade during positioning movement of the caddy. A manually operable adjusting device is provided on the support for adjustably elevating a rear supporting element on the wheeled support for correspondingly elevating the rear connecting portion of the plow frame to align it with the vehicle attachment portion. The adjusting device includes a handle which is manipulatable at the front of the caddy for facilitating the controlled elevation of the plow frame rear portion.

Abstract: The invention relates to a very light weight portable single stage snow remover which is electrically powered, can be operated and manipulated in a sideways swinging fashion in the manner of a broom, can handle normally difficult areas to clean such as steps and patios, can conveniently and easily be used in larger areas such as driveways and sidewalks, and can be pushed forward along the surface to be cleaned without having to swing the unit when forward movement is more desirable than sideward movement. The snow remover comprises a bladed rotor which operates within a housing and is rotated by an electric motor, the blades of the rotor throwing the snow rearwardly and upwardly against a snow collecting and directing wall which projects the snow in the direction desired.

Abstract: A trenching implement (41) suitable for towing on the sea bed to make a trench for a submarine cable or pipeline (54) comprises a body (44) attached to which is a soil cutting member (46) which makes a soil surface in the direction of travel of the implement, a landside (45) engaging the soil surface and a towing means (56) connected so that, when the direction of travel is different from the line of the towing force (56), the line of the towing force (56), projected if necessary, passes through a point (50) in the region of the landside (45) with the result that the landside (45) resists the sideways component of the towing force (56). This reduces the risk of damage to the cable or pipeline (54).

Abstract: The invention concerns an earth ripping attachment which can be mounted on the bucket of a dragline and used to break through cap rock, frozen earth, or other difficult to dig overburden. The device has a base adapted to fit against the underside of the bucket. An upwardly folded lip at one end of the base receives and engages the digging edge of the bucket, while means provided at the other end connects to the bucket hoist rigging to secure the attachment in place. One or more ripper teeth are spaced below the base and point in the drag direction. With this attachment the full drag force of the dragline and the weight of the bucket are utilized in the ripping operation.

Abstract: A walking dragline excavator massive hollow internally reinforced base frame has built-in annular rail girder means over which annular track means are carried for running thereon of roller means adapted for supporting the revolving frame on the annular track means. Load stress distribution between the base frame and the revolving frame is attained by having an annular area contiguous to the perimeter of the base frame of greater resilient flexibility than the remainder of the base frame. Means comprising either bolts or clips are provided for releasably connecting the track means to the base frame and for permitting load stress relief circumferentially directed relative movement of the track means and the base frame under load transmitted through roller means by the revolving frame during load lifting and operational revolving of the revolving frame.

Abstract: This machine comprises a chassis which bears at one end a motor unit for driving large size drive wheels whereby said chassis rests on the ground at this end. At its other end, the chassis is provided with retractable supports by which it may rest on the ground. This end also carries a turret mounted on the chassis by an orientation ring and supporting the cabin. A working assembly is articulated on this turret immediately above the orientation ring in such a way as to be subjected to vertical clearance swinging movement by passing beside the cabin. Arms associated with jacks and supporting steering wheels are also articulated on this cabin. When the cabin is facing forward, the cabin and motor unit are disposed on one side of the longitudinal axis of the machine, while the working assembly is disposed on the other side of that longitudinal axis.

Abstract: A linkage system is described for increasing the moment arm of the hydraulic actuator or motor used to raise the lift arm of a material handling machine as the lift arm is rotated between its lowered and its raised position. The linkage includes a generally vertically disposed connecting link and a generally V-shaped lever arm. The connecting link translates the rotation of the lift arm into a vertical displacement. The lever arm converts the vertical displacement of the connecting link to rotate the lower end of the lift arm actuator forwardly and downwardly so that its position relative to the pivot point of the left arm increases as the lift arm is rotated to its raised position. Thus, a generally greater moment arm is produced to raise the lift arm in contradistinction to the lifting linkages of the prior art where the lifting moment arm generally decreased as the lift arm was rotated upwardly.

Abstract: A digger tooth for a power digging bucket or the like including an operating portion and an attachment portion, the operating portion comprising in combination:a back wall having an upper end, a lower end, and an upper surface extending forwardly and downwardly from the upper end to the lower end;a lower edge extending forwardly from the lower end of the back wall to a leading end;first and second sidewalls extending upwardly and diverging from the lower edge to define an open cavity, the first and second sidewalls each having a rear edge integral with the back wall and a forward edge, the forward edges together defining a front end opening; anda wing-like flange extending laterally outwardly from each of the sidewalls from the respective upper edges thereof, each of the wing-like flange also merging at a trailing end thereof with the upper end of the back wall.

Abstract: A typing copy stand is provided for use in conjunction with a typewriter. This typing copy stand comprises a support plate having a pair of vertically extending and spaced apart slots for cooperative engagement with a guideline bar. The guideline bar has flanges which project through the slots and are connected to one another by a tension spring to bias the flanges into frictional engagement with the sides of the slots. The bar may be frictionally retained at a desired position but is easily and readily moved to a selected position. One embodiment has the copy support disposed in upwardly inclined relationship and may also incorporate a hook support ledge. Another embodiment of the typing copy stand has the support plate disposed perpendicular to a support base and in elevated relationship so as to be above a typewriter. A paper support strip may be attached to the copy support plate below and extending transversely to the vertically extending slots.

Abstract: A lightweight display device capable of vertical adjustment to desired height having a display frame attached to one end of a rod whose other end is formed with a pair of resilient arms having a plurality of teeth for the outer surface. The rod is positioned for ratchet-like vertical movement within a hollow tube having a threaded inner surface which engages with the teeth. The frame can be raised or lowered, along the length of the rod, by extending a vertical force thereto sufficient to deflect the arms of the rod away from the threads of the tube. When the vertical force is removed, the teeth re-engage with the threads to support the display frame at the desired height.

Abstract: The timetable holder is mounted on a post and has a cylindrical element journalled around the post and has at least one tube of transparent material for the housing of a timetable which can be read from outside through the tube side wall, the tube being closed at both ends by a sleeve mounted on the post and securable to it.

Abstract: A magazine (20) for delivering rimmed cartridges to a handgun is disclosed. Magazine (20) includes a casing (22) having a removable base or closure (26). Magazine (20) further includes a spring loaded follower (51) for urging cartridges upwardly against solid lips (41, 42) and yieldable lips (4,5 46). Follower (51) cooperates with a latching mechanism comprised principally of a spring urged pawl (61) for engagement with a latch member (60). The latching mechanism disengages when magazine (20) is inserted into butt (21) of a handgun so that release (70) is cammed inwardly to force pawl (61) to disengage from latch member (60). The cartridges in magazine (20) assume a banana-shape with base support from a wedge (80).

Abstract: An electronic set trigger is mounted in association with the mechanical firing mechanism of a rifle. The rifle may be fired in normal fashion through the normal mechanical linkage associated with a trigger lever. When a set trigger is desired, the electronic set trigger is activated by depressing a switch which activates a charging circuit to charge a capacitor carried within the firearm. The capacitor is discharged by pressing a switch associated with the trigger lever thereby discharging a capacitor through a solenoid coil associated with a reciprocating core mechanically linked to the trigger lever.