Abstract: Scissors including a finger loop and extending generally along a shank on one blade with a thumb loop on the shank of the second blade and generally perpendicular thereto. The thumb loop is adjustable along the shank of the second blade, is held in place by a limit stop extending between the blade shanks, and may be removed so that a different shaped loop can be substituted.

Abstract: A mill for guiding the cutting of a chain saw includes a pair of rail members, each rail member comprising a length of C-channel, with a lip joined to the distal edge of one leg of the channel and extending parallel to the web of the channel. At least one hole is disposed in the web of each channel length, and a long bolt extends through the hole to join the rail members in parallel disposition. A plurality of rectangular spacer members of various thicknesses are each provided with a hole therethrough to receive the bolt. The bolt extends through a hole in the chain saw bar near the power head to assemble the rail members and spacer members to the chain saw. The lip of one rail member acts as a rip fence riding on a previously cut edge, with the spacers employed to join the chain saw bar to the rip fence at a selected spacing interval therefrom.

Abstract: A perforated tray for taking an impression of an upper or a lower jaw, which may be dentulous or edentulous. In this tray all perforations are shaped as elongated slits. Further the slits may extend at least approximately transversely to the vestibular outline of the tray when viewed from above or from below. The part of the tray, which covers in situ the top of the crest of the jaw, or the masticatory surfaces of the teeth, may be left unperforated. In a tray for taking an impression of an upper jaw, the part of the tray which covers in situ the torus palatinus lying in the center of the palate, may be left unperforated.

Abstract: A dental handpiece has a housing with a removable cap together defining a chamber in which are coaxially mounted two bearings, each with an inner race and an outer race spaced apart to leave an intervening gap. Annular housing shields extend into the gaps. The bearings are mounted in elastomeric rings, each having a circular-cylindrical mounting surface. A shaft is disposed in the inner races of the rings. Between the bearings the shaft carries a turbine runner including two cups each having a hub and having peripheral turbine blades spaced apart a predetermined distance. The cups are mounted on the shaft with the cups facing each other so that the hubs and peripheries abut in a common plane normal to the axis and also defining a central annular space. The turbine blades are staggered with respect to each other. They receive air from an inlet passage in the housing and release air to an outlet passage in the housing.

Abstract: A drawing instrument comprises a pair of die-cast limbs pivotally connected together to form an assembly at the inner ends thereof. A bow top has an interior hole and fork limbs having inside faces embracing the assembly of the ends. A centralizing member is held between the inner ends of the pivoted die-cast limbs. The centralizing member includes an elongated pivot receiving hole and first and second keying poles. A first die-cast keying projection is integrally formed at the inner end of a first one of the pivoted die-cast limbs. A first arcuate slot is provided in the inner end of the first pivoted die-cast limb. A second die-cast keying projection is integrally formed at the inner end of the second one of the pivoted die-cast limbs. A second arcuate slot is disposed in the inner end of the second pivoted die-cast limb. The first and second die-cast keying projections engage the second and first arcuate slots, respectively.

Abstract: An engraving machine for rings and bangle bracelets is disclosed. The machine is of the type that utilizes a circular pattern carrier rotatably carried on the base of the machine. The patterns, which are carried on the periphery of the carrier, are transferred to the inner surface of a ring or bangle bracelet by way of a pantograph lever having a stylus adjacent the pattern carrier and an engraving tool adjacent the inner surface of the ring or bangle bracelet. A workholder assembly is utilized to position the ring or bangle bracelet during the engraving process. The entire workholder assembly is vertically slideable along two horizontally disposed rods, which are secured to a carrier frame. A peripheral indexable ratchet wheel is rotatably mounted to the workholder assembly and carries on it a plurality of clamping chucks which hold the rings or bangle bracelets in position. The clamping chucks are axially slideable within slots in the ratchet wheel and have interchangeable jigs removably secured to them.

Abstract: An apparatus for measuring the contour of rotor blades is provided. The apparatus or fixture of the present invention will measure airfoil shape and twist at any spanwise station along a rotor blade as well as measuring the chordwise and flapwise bow of the rotor blade. The fixture includes a base to which the blade is secured. A plate or templet like device is placed about the blade. The plate is secured to a carriage which is movable along the base so that it may traverse the blade along its span. Transducers connected to the plate measure the airfoil contour at particular spanwise stations. The plate is mounted to the carriage in such a manner that its rotation, vertical, and horizontal displacement may be measured and hence the twist, chordwise and flapwise bow may be determined.

Abstract: An internal diameter gauge for measuring thin wall containers is disclosed herein. The gauge includes a pair of mandrel halves that are supported between a shaft and a housing with cooperating camming surfaces on the mandrel halves, the housing and the shaft which move the peripheral semi-circular surfaces of the mandrel halves radially. The camming surfaces on the housing and shaft are biased toward each other through a biasing mechanism between the shaft and the housing while the mandrel halves are biased toward each other through a further biasing mechanism and a handle cooperates with the shaft to displace the shaft and allow the mandrel halves to contract.

Abstract: A surveyor's rod apparatus including a plurality of sections which may be selectively connected together in end-to-end relationship to provide an elongated surveyor's rod that is visible over relatively long distances regardless of obstructions including vegetation and terrain between the rod and a sighting or surveying instrument. At least one section of the rod includes a leveling device to make certain that the rod is disposed along a vertical axis in the plane of the sighting instrument. The lower section of the rod is selectively connected to a base in a manner such that the base may be used for providing a flat area on which the base is subsequently located, or the lower section of the rod may be connected to the base in a manner that the base may be driven into the ground at a fixed location.

Abstract: A remote-indicating magnetic compass system for use with automobiles or the like. The system consists of a dashboard-mounted readout unit, which receives and decodes logic signals provided thereto from a remotely located electro-optical shaft encoder, the latter being responsive to and positioned by the earth's magnetic field. The form of bearing readout is discrete rather than continuous, e. g. 8 or 16 bearing states are described. The bearing readout display may be defined by a plurality of discrete indicators, such as light-emitting diodes, or segmented alpha indicators or so forth may be employed. The electro-optical shaft encoder assembly is preferably located at a point on the vehicle distant from large bodies of iron or steel, and where the earth's field is strong relative to fields associated with permanently magnetized auto parts.

Abstract: Sterile, essentially crystalline cefazolin sodium for parenteral administration is prepared by a freeze-drying process wherein a C.sub.1 -C.sub.3 alcohol-water solution of cefazolin sodium containing about 10 percent by volume of the C.sub.1 -C.sub.3 alcohol is chilled slowly from room temperature to about -10.degree. C. over a 3-12 hour period and then rapidly cooled to -30.degree. to about -40.degree. C. and held for 1-2 hours before subjecting said frozen solution to a high vacuum and a moderate amount of heat to sublime the frozen solvent therefrom. The resulting powder dissolves rapidly in acceptable pharmaceutical diluents.

Abstract: Methods of and installations for drying continuous webs of materials such as paper in which the web contacts rotating dryers heated by circulating a heat transfer liquid through them. Rotary dryers for such installations; and methods for upgrading the performance of conventional installations employing rotary dryers and for upgrading the performance of conventional rotary dryers.

Abstract: The method comprises feeding the veneer through a closed chamber under vacuum conditions, and heating the veneer while in the chamber by an infrared emitter. The apparatus comprises a chamber having means for feeding the veneer to, through and from the chamber, means for creating a vacuum within the chamber, and infrared emitter heating means.

Abstract: Apparatus for drying webs which includes a housing having two compartments with one compartment open on one side and having heating elements therein. The other of said compartments is closed and has air inlet and outlet openings for circulation of air normally therethrough. An air control valve is disposed between the compartments and functions to direct all of the air into the open compartment should the web speed decrease or the movement of the web terminate completely.

Abstract: In a rotary heat exchanger, two groups of tubes are concentrically arranged about a drive shaft and the tubes have ports at their ends which are in communication with inlet and discharge chambers to which respective streams of gas are delivered so that two separate streams of gas may be circulated through the tubes. A solid granular material is supplied into the tubes of one group at one end and, near the other end, the tubes of the first and second groups are interconnected for passing the material from one group to the other.

Abstract: Disclosed herein is a modular panel that can be assembled with other similar panels, to form magnetic boards for programming and statistical purposes. Each panel consists of a metal sheet, whereon a grating is defined by two pluralities of equidistantly spaced parallel grooves, grooves of one plurality being perpendicular to those of the other. The grooves are embossed on the metal sheet. The center-to-center distance of successive nodes, or points of intersection of the grooves subdivide the board into equal parts. Magnetic signalling elements can be inserted into said grooves. The same elements can be horizontally or vertically placed on the board, whatever the orientation thereof may be.

Abstract: An educational toy which utilizes visual and tactile association to develop, particularly in the young child and the child with learning disabilities, the ability to recognize/identify a picture and/or figure of an object with, for example, a descriptive word or symbol having associative significance.Two columns of drums, each independently operable, are rotatably mounted in a housing having viewing windows adjacent each drum. Each drum in one column has a plurality of pictorial representations on its circumferencial surface which has associative significance with a descriptive word or symbol on the circumferencial surface of an adjacent drum. Learning, for example, visual discrimination, is effected by alignment of pictorial representations with associated words/symbols. The learning experience is enhanced and reinforced by color alignment and tactile association respectively.

Abstract: An amusement device for children and the like useful for spelling education includes a toy with a support structure comprising an elongated horizontal shaft extending between opposite end portions which are adapted to rest on a supporting surface and which are fashioned to resemble the head and tail portions of a "bee-like" insect. A plurality of spinner elements are mounted on the shaft between opposite end portions and are adapted for manual spinning on the shaft. Each of the spinning elements is formed with a polygonal shaped centrally disposed opening for accommodating the shaft and a corresponding generally polygonal outer surface having a plurality of outer surface segments, each of which is provided with a selected alpha-numeric character.

Abstract: The present invention provides a self-cleaning golf-shoe cleat that is threadably secured to a conventional golf shoe, wherein the sole of the shoe includes typical threaded plugs. The self-cleaning golf-shoe cleat comprises a cleat having a main circular body member formed as a shallow, truncated cone with a spike member extending outwardly from the central plane thereof in the well-known cleat arrangement, and with a rearward extending threaded boss adapted to be received in the threaded plug of the shoe, the circular body and the spike being encapsulated within a resilient rubber-like material wherein the resilient material is formed having at least one hollow cavity, so as to collapse about the spike under the weight of the wearer, and being movable generally axially of the spike during recovery from the collapsed position, whereby foreign material adhered to the spike is removed therefrom.

Abstract: An article of footwear including a heel, at least a portion of the heel which presents a rear ground engaging zone of the heel, being rotatable relative to the remainder of the article of footwear. Preferably, the heel comprises a base portion adapted to be attached to the remainder of the article of footwear; and a rotary portion rotatably mountable on the base portion and presenting a rear ground engaging edge of the heel.

Abstract: Footwear structure comprising essentially a lower portion and an upper portion or vamp, associated with said lower portion. The lower portion defines generally the sole and heel of the footwear. It comprises substantially a front element, a rear element and an intermediate supporting element or web. The web is associable rigidly, at its ends, with the front and rear elements for engagement therewith.

Abstract: An improved pump-type sludge dredging apparatus including a pump dredger having a first ladder, a sludge suction pump acting in cooperation with the ladder and pump dredger, a suction pipe, a second ladder, a suction device suspended from the second ladder and connected to the pump through a suction pipe, a rotator, a half-cylindrical sludge collector plate, a substantially inverted U-shaped body structure, a grating, movable vanes disposed outside the grating and gas collecting chambers.

Abstract: A pop-up item for promotional purposes wherein a cover panel and a back panel, hinged to each other along a straight line, sandwich a die-cut panel in which are formed a plurality of interconnected coupons and at least two tabs. One tab is joined to the cover, and the other tab means is joined to the back. Opening of the cover causes the coupons to pop-up and attract the attention of the recipient. The items can be inexpensively mass-produced as a part of a web-press or sheet-press operation.

Abstract: This invention relates to the display of pictorial matter such as paintings, water colors, photographs, graphic art, or other two-dimensional art. The invention consists of a structural assembly in the form of a display box, or kit of parts from which such a box can be constructed, having a front frame with an inner cut-out portion through which the pictorial matter is viewed, and means to locate the pictorial matter in a variety of distances and dispositions recessed behind the front frame. The pictorial matter may be disposed parallel to the viewing frame, at an angle thereto, or in two or more angles relative to the viewing frame, or in a curvilinear surface.

Abstract: A holder for X-ray films comprising a sheet of very thin material having a series of rectangular openings therein, each opening being surrounded by a depressed continuous flange below the plane of the sheet, and a discontinuous flange generally in the plane of the sheet of material, said discontinuous flange comprising four separate non-flexible lips or tabs extending for the major portion of the lengths of the respective sides into the rectangles in which they are located.

Abstract: A device for supplying secondary air in proportion to the volume of intake air into the exhaust manifold of an internal combustion engine without any adverse effects on an exhaust gas recirculation system, the device comprising a secondary air supply pipe communicated with the exhaust manifold, means for supplying secondary air through the secondary air supply pipe into the exhaust manifold, secondary air control valve means disposed in the secondary air supply pipe for controlling the flow rate of secondary air flowing therethrough, means for detecting the volume of intake air to said engine, means for detecting the volume of the secondary air flowing through the secondary air supply pipe, and means responsive to both the signal representative of the detected volume of intake air and the signal representative of the detected volume of the secondary air supply for controlling the secondary air control valve means in such a way that the secondary air supply may be in proportion to the volume of intake air.

Abstract: Method and apparatus for actuating a counting device for recording and stng data. The invention comprises an activator for a counter device and includes a mass or weight having an eccentric center of mass which is freely pivotable in one plane in response to an externally applied impulse force of a predetermined magnitude to apply a torque force to a shaft which, on rotation thereof under the influence of said torque force, activates the counter mechanism to record a count. Means are also provided to apply counter torque force of a constant predetermined magnitude or value to the shaft so that the counting device is actuated only in response to a resultant torque force of a predetermined magnitude or value generated by the impulse.

Abstract: An improved fishing rod tip-up or strike indicator is disclosed which is removably attached to a fishing rod for indicating a strike while, at the same time, releasing the fishing line permitting it to run free. The tip-up has a clamp for removably attaching it to the fishing pole and has a partially rotating flag wire assembly supported by a pivot pin. As a fish strikes the bait, pulling on the fishing line, it causes the flag wire assembly to tilt to an upright strike indicating position. In this vertical position the fishing line will slip away from the holder allowing the line to run free.

Abstract: A bait tank adapted to supply a continuous flow of water through a storage tank having live fish stored therein, said fish being used as fishing bait, wherein the tank is formed having a cylindrical wall defining a storage compartment for unobstructed water circulation therein, an angular channel being vertically formed in the annular wall with inlet openings spaced vertically therein to introduce water in a direction generally parallel to the circular inner side of the tank. Oppositely disposed to the inlet channel is an outlet system including an adjustable gate valve to control the height of the water within the tank, and including a drain gate to allow the tank to be emptied.

Abstract: A safety catch for a rotating frame animal trap of round wire stock. The trap has two similar frames each frame having jaw forming sides and ends extending between the sides to support the jaws. The catch comprises a helix of an internal diameter about equal to the external diameter of the round wire stock of the frame so that the helix can fit around a first frame of the trap. The spacing of the coils of the helix is at least equal to the diameter of the wire stock. A hook extending outwardly from the helix to be able to engage, when the catch is in its useful position on a set trap, the second frame of the trap to prevent rotation of the frames. The catch is easy to install, even in a manufactured trap, unlike prior art safety catches.

Abstract: A toy trackway featuring a platform having an upper level and a lower level, the upper level provided with a trackway terminating at each end in a locking member, the lower level provided with two trackways each terminating in a locking member, and two flexible trackways, each terminating in locking members for engagement with the locking members of the trackways of the upper and lower levels of the platform, thus permitting one of the locking members of each of the flexible trackways to be attached to the locking members of the trackway of the upper level and the other of the locking members of each of the flexible trackways to be attached to the locking members of the trackways of the lower level either on the same side of the platform or on opposite sides of the platform.

Abstract: A wheeled toy with at least one wheel having a hollow thin-walled pliant toroidal tube formed from a piece of thin flexible material such as fabric and containing a relatively rigid sleeve disposed within the tube interior in surrounding relation to the inner annular wall portion of the toroid and soft spongy stuffing material, such as cotton. The wheel is rotatably mounted on the toy body by means of an axle extending through the central openings in the toroid and sleeve. A method of fabricating the wheel.

Abstract: A method and apparatus for facilitating plant growth in which light is alternately directed at the plants from at least two directions. The frequency at which the light is shifted between directions is sufficiently low to allow the plant to react to the light source before the direction of illumination is shifted thereby increasing the growth rate of the plant. In one embodiment, the lights are arranged in two parallel rows above the plants with the rows longitudinally offset from each other so that the lights in each row are directly opposite the midpoint between lights of the other row. Each row is connected in a separately energized circuit so that as the circuits are alternately energized the light is directed onto the plants from at least two discrete directions.

Abstract: A pair of doors hinged to a frame and including a self-locking three-point latch and coordinated closing system.

Abstract: The present invention relates to an adjustable threshold for use in door openings and adjustable to provide a better seal between the threshold and the door comprising first and second partial thresholds, fastening means to secure said first partial threshold to the floor, a flexible partial threshold operably mounted to and disposed between said first and second partial threshold, and a plurality of adjustable fastening means operably mounted on and disposed between said first and second partial thresholds such that such adjustable fastening means cause the first and second partial thresholds to be drawn toward or away from each other and thereby cause the flexible threshold to raise or lower at various points along the length of the threshold.

Abstract: The invention relates to the field of building construction. It is a structure composed of a rigid space form and a partial vacuum enclosed by a double layer of fabric. The enclosed partial vacuum not only acts as a thermal barrier, but also causes a pressure differential between the outer and inner faces of the fabrics. This pressure differential supports the inner fabric layer, and stresses the outer fabric layer in such a manner as to cause it to cling to the rigid space form.

Abstract: The invention relates to a dome-type structure constructed from four basic triangular structural units. Each basic unit is an isosceles triangle which has predetermined angular edges. The four units are interrelated in their dimensional sizes and angular edges. The several units are installed in four circular tiers whereby abutting adjacent units fit together properly, and whereby upper tiers are canted inwardly to enclose the structure. The structure requires no internal support members. The radius of the circular base is greater than the height of the structure.

Abstract: In an articulated boom having a platform and comprised of upper and lower booms respectively, there are hydraulic actuators controlling the movements of the upper and lower booms. Control means are necessary in association with the lower boom to control its rate of movement, slowing such rate of movement as the lower boom approaches its retracted, or full rest, position. A position responsive valve permits unimpeded fluid pressure access to the actuator for lowering the lower boom at its regular rate until the lower boom reaches a critical angle as it approaches horizontal position, at which time the valve prevents further fluid access to its associated hydraulic actuator. Thereafter, a position responsive valve and a pressure reducing valve reduce the rate of descent of the lower boom until the lower boom is fully retracted to its rest position.

Abstract: An acoustical panel formed of a core of sound-attenuating material having a front and a back surface. The edges of the core are resin-hardened for rigidification. The core is covered by a fabric stretched over its front surface adhered to the hardened edges and to the back surface. A board cover is fixed on the back surface over the core and the ends of the fabric.In other versions of the invention, the core is reinforced by having its edges encased in a frame to which it is secured by the resin. The fabric is stretched over the frame and core thereby forming an air gap between the fabric and the core which improves the acoustical efficiency of the panel and masks the outline of the frame. High-impact-resistant channel members of different shapes constitute the frame.

Abstract: An insulated log building structure comprising two parallel, vertically extending log walls having an insulative layer of foam plastic disposed therebetween. Each of the walls are formed of horizontally extending logs mounted vertically upon one another in a tongue and groove relationship. A layer of fiberglass insulation may be disposed between the tongues and grooves of contacting logs to insulatively seal the joints. Vertically extending tie rods within vertically aligned apertures of the logs making up the walls hold the two log walls in parallel alignment.

Abstract: Self-locking connector elements at opposite ends of elongated panels for interlocking superposed panels with others at angles thereto, to provide wall structure for enclosures of various types. The connector elements each have a pair of laterally spaced side wall portions connected at one end by a transverse wall portion and a partition connection the side wall portions in spaced parallel relation to the transverse wall portion. The side wall portions are secured to an end of a given panel, parallel to opposite sides of the panel, with the transverse wall portion and partition disposed in longitudinally outwardly spaced relation to the adjacent end of the panel, the partition and wall portions forming an open ended passageway.

Abstract: A light valve system wherein particulate material is introduced into a normally light-transmitting cavity to restrict light transmission through the cavity from one side to the other. The cavity may be partially or totally filled with a particulate material depending on the degree of light restriction desired. The particulate material may comprise a thermal insulating material which restricts heat transmission as well as light transmission through the cavity. The use of the present light valve system in a greenhouse structure is described.

Abstract: A reel of flexible sheet material of a width wider than the space between adjacent ones of the purlins in a roof structure is mounted on a support framework over a space between adjacent ones of the purlins. The framework is moved along the purlins and the reel of sheet material is progressively unrolled and the sheet material is formed and guided by the framework down into the space between the adjacent purlins to create a trough in the space between the adjacent purlins. Insulation material is placed in and supported in the trough of sheet material and additional hard insulation can be applied to the upper and lower flanges of the purlins and also can be applied to the purlins to span the space between adjacent ones of purlins. Hard sheets of roofing material are applied to the purlins to cover the roof structure.

Abstract: An outer skin or facing of wood sheet material and an inner skin or facing of wood sheet material are adhesively bonded to opposite sides of a core of rigid expanded foam material to form an elongated wall unit having a horizontal length greater than its vertical height. A longitudinally extending upper portion of the wall unit incorporates adhesively bonded members which form an integral continuous beam extending horizontally from one end of the wall unit to the opposite end. The integral beam has a vertical height substantially greater than its thickness for supporting a substantial load above a door or window opening which may be subsequently formed within the wall unit at any selected location between the ends of the wall unit. A plurality of spaced wood furring strips are adhesively bonded to the inner facing of the wall unit and are provided with channels adjacent the inner facing for receiving electrical wiring.

Abstract: A resilient fastener or adapter and method is provided for attaching a flanged molding member, or the like, to a panel to substantially cover a gap between the panel and a spaced structural member. The fastener or adapter is flexurally insertable in the space between the panel surface and the structured member and is retained therebetween in the flexed state. A resilient tab extends adjacent a surface of the panel to receive a flange of the molding in interference engagement therewith and retain the molding in place. The fastener or adapter is advantageously employed in the manufacture of an automobile to retain a decorative molding in the space formed between a windshield or backlight and the body panel to which the windshield or backlight is assembled.

Abstract: An arrangement for sealing and retaining a window glass (such as a motor vehicle windshield) in an opening is disclosed for use where the window opening has a surrounding flange directed inwardly of the opening. A series of U-shaped metal clips are placed onto the flange at intervals. Each clip additionally has at least two arms which project outwardly of the opening from near to the free edge of one leg of each clip, the arms of each clip being provided with teeth and together defining a mouth. A continuous channel-shaped flexible strip structure is then placed over the U-shaped clips and the flange between the clips, but so as to leave the projecting arms clear. The strip structure includes two outwardly projecting sealing lips, against which the window glass seats. A beading, of T-shape in cross-section, is then placed around the entire periphery of the window glass, with the leg of the T extending into the mouths provided by the projecting arms on each clip and locking with the teeth therein.

Abstract: A modular element is disclosed which includes a plurality of rib pairs protruding from a surface of a base. Each rib pair includes first and second ribs which extend longitudinally parallel to each other and which are transversely spaced to define therebetween a first groove. Similarly, the rib pairs also longitudinally extend parallel to each other with adjacent rib pairs defining therebetween a second groove. Various relationships among the transverse widths of the first and second ribs, the rib pairs, and the first and second grooves are disclosed to permit mating modular elements to have a plurality of orientations with respect to each other in face-to-face contact. Likewise, relationships among the transverse height of the base, and the transverse height of the modular element, and the transverse widths of the first and second ribs, rib pairs, and first and second grooves are also disclosed to permit mating modular elements to have a plurality of orientations in end-to-face contact.

Abstract: A spacer for concrete reinforcements, comprising a moulded member and two ends of a wire stirrup projecting therefrom, the curved connecting part of the stirrup being anchored in the moulded member and the intersecting ends of the resilient wire stirrup being bent towards one another to clip on the reinforcements rod by turning the spacer.

Abstract: A method is described for constructing a concrete building from precast concrete wall and floor panels. Each floor construction has a plurality of spaced-apart dowels which project upwardly above its surface along the proposed joint between the floor and a proposed wall, and each of the wall panels includes along its length vertical voids which extend for its full height at a spacing from one another generally the same as the spacing between the dowels projecting upward from the floor construction. The load bearing walls of the building are formed by erecting wall panels for the same vertically at the proposed joint with the dowels extending into the wall panel voids. Reinforcing rods are introduced into the voids to overlap the ones projecting upward from the floor, and the voids are filled with mortar to tie each of such wall panels to the floor below.

Abstract: A photoelectrically controlled garment bagger. The bagger comprises a support frame for the bagger housing and for a roll of translucent sequentially detachable bags. The roll is provided with transverse perforations along which individual bags may be detached. Each bag is provided with an opaque spot located a predetermined distance from the perforations. The bags travel over a roller assembly.A photoelectric light responsive control unit employing a retroflector is mounted in the housing above the path of travel of the opaque spots on the bags. When an opaque spot on a bag interrupts the light beam of the control unit, a clamp bar in the housing is actuated to halt the movement of the roll of bags for a length of time sufficient to enable an operator to detach a bag and spread it on a garment, using a spreader device secured to the housing.