Abstract: A dental implant for maintaining a dental prosthetic device in a fixed relation with respect to a jaw bone includes a support post in the form of an internally threaded hollow cylindrical sleeve. The support post is introduced into a complementay cavity formed in the region of the crest of the jaw bone. The support post is provided with at least partially threaded apertures which are spaced from each other along and angularly displaced from each other about the periphery of the support post. Self-tapping anchoring screws extend through preformed blind holes drilled in the jaw bone with the assistance of a jig forming part of the present invention. The preformed holes extend in a direction substantially normal to the support post and are aligned with the apertures in the latter. The anchoring screws threadedly engage the bone and the threaded portions of the support post without extending beyond the preformed blind holes.

Abstract: An alarm transmitter device includes a storage element which stores electrical charge and which energizes an output transmitting circuit upon the occurrence of an alarm condition. To maintain the storage element at full charge or in ready standby mode, a trickle charging circuit is provided which includes an energy conversion device for converting solar energy, broadcast electromagnetic energy, heat energy or the like into an electrical current suitable for trickle charging the storage element. After the storage element is substantially discharged, subsequent to an occurrence of an alarm condition, a battery or other source of electrical energy is connectable to terminals connected to the storage element for initially rapidly recharging the storage element to the fully charged state.

Abstract: An epicyclic gear change assembly capable of giving a planetary ratio and direct drive and having first means for frictionally connecting two members of epicyclic gearing together for direct drive and second means for positively connecting two members of the gearing together for direct drive so that if the first means is engaged while the gearing is stationary and tends to slip when the gearing starts to be driven, the second means automatically comes into operation to inhibit such slipping.

Abstract: A decorative auxiliary table top unit for a table, desk and the like, the unit comprising a transparent table top member and vertical members for supporting the table top member above the table, desk and the like to define a compartment space therebetween to receive articles of food, writing material and the like which can be seen through an upper surface of the transparent table top member. The vertical support members are disposed around the periphery of the table top member and are spaced apart to permit horizontal access to the compartment space. An edge member is disposed around the periphery of the table between the support members and an undersurface of the table top member, where upper portions of the support members are secured to the edge member, and lower portions of the support members are secured to the table, desk and the like for maintaining the table top member in its elevated position.

Abstract: The invention relate to a lighthouse or beacon construction characterized in that in order to isolate vibrations, the upper part of the construction is not in rigid connection with the lower part subject to forces which cause vibrations, but the construction is broken at a suitable height and the upper part is mounted on the lower part so that it is supported by slide rails, roll rails, wheels, a flexible or pivoted parallelogram mechanism or elastic poles, or a corresponding flexible mechanism, so that the lower part can move substantially horizontally in relation to the upper part while the upper part is maintained in substantially vertical position.

Abstract: The present invention provides a motor driven, helical screw conveyor having an impeller wheel at one end thereof. The screw conveyor is immersed in the liquid to be transferred and lifts the liquid so that the impeller may drive it through a first conduit and a first valve into a utilization device. The valve has three separate positions, the first of which permits delivery of a major portion of the fluid to the utilization device with a minor portion of the fluid being returned to the container via a second conduit. A second position of the first valve provides for flow of fluid from the container, through the first conduit, through the first valve and then directly back to the container via the second conduit.

Abstract: A gauge for measuring fluid pressure having a housing containing a dial plate provided with pressure readings thereon, and a pointer to indicate the pressure readings. The pointer is rotated by a cylindrical member connected thereto. The cylindrical member is associated with a plunger against which the fluid pressure is exerted. A coil spring exerts a spring pressure on the plunger for determining movement of the plunger in a linear direction to any one of predetermined positions corresponding to associated fluid pressures. The spring characteristic causes the predetermined positions to be non-proportional to the associated fluid pressures. The plunger is provided with at least one guide groove corresponding to the spring characteristic for relating non-proportional linear positions to radial positions which are proportional to the associated fluid pressures.

Abstract: A dispensing tray for a glue machine is described which includes a glue reservoir in fluid flow communication, through an elongate narrow slot, to an open trough which at least partially receives a pickup roller of the glue machine in the operative position thereof. Glue within the reservoir is gradually dispensed through the opening or slot to replace glue which is removed by the pickup roller. The tray is pivotally mounted on the machine to permit movement of the tray from a substantially horizontal position wherein the reservoir and trough are substantially the same levels and a substantially vertical position wherein the reservoir is disposed below the trough for permitting flow of glue from the trough back into the reservoir through the elongate opening. Means are provided for maintaining the tray in the operative position during use of the glue machine and for releasing the same to the filling or storage position subsequent to termination of use of the machine.

Abstract: A vacuum cleaner filter bag is made of a porous sheet of material which permits penetration and flow therethrough of air. The bag is generally horseshoe-shaped and has a comparably shaped internal cavity. The bag has two tubular leg portions and a tubular connecting portion between the leg portions. An air inlet opening is provided on the connecting portion for admitting a stream of air under pressure into the cavity and an opening, which permits removal of accumulated debris but which is closed during use of the bag, is also provided on the connecting portion. The air flow between the air inlet opening on the vacuum cleaner housing and the inlet opening of an exhaust motor situated within the vacuum cleaner housing generally tends to primarily penetrate or flow through a wall portion of the bag disposed between the respective inlet air openings.

Abstract: A lamp fixture for releasably holding a hollow globe is comprised of a sheet metal housing that is generally cup shaped and to the base wall of which is removably secured a pair of diametrically opposed resilient clip members for holding the globe. The clip members may be secured on any one of a plurality of different diameters depending upon the specific dimension of the diameter of the globe that is to be held.

Abstract: A selection device for knitting machines having a rotating cylinder with slots around its circumference for accomodating a knitting needle and an associated knitting jack in each slot, the device including a selection tape loop for controlling the jack selectors of the knitting machine. The jack selectors are movable between an operative jack position and a non-operative jack position. Stationary detecting elements co-act with the tape loop for determining the positions of the jack selectors to provide a predetermined knitting pattern. A drive mechanism moves the tape loop in synchronization with the cylinder and relative to the stationary detecting element.

Abstract: A method of treating air containing odoriferous substances of both large and small molecular weights includes the step of establishing a flow of the air containing the odoriferous substances. The stream of flowing air is exposed to a bath in the form of a fine spray or mist of a concentrated solution of potassium permanganate at a first treatment zone to primarily oxidize the odoriferous substances having the smaller molecular weights and wash the air. The air is then passed through an adsorbing medium in the form of a bed of activated carbon at a second treatment zone to substantially adsorb and remove the remaining odoriferous substances having the larger molecular weights. Advantageously, the mist or droplets of the spray solution are removed from the air subsequent to movement from the first treatment zone and prior to movement into the second treatment zone. With the method, the air is substantially free of odoriferous substances upon removal from the second treatment zone.

Abstract: Apparatus for assembling a frame fabricated from magnetically attractable material forming a strip member, the apparatus comprising a base member, a first pair of arms pivotally mounted on the base member, and a second pair of arms pivotally mounted for movement along the base member. The first pair of arms include magnets for holding the center portions of the strip for movement therewith to form a first corner of the frame. After the first corner is formed, the second pair of arms pivot to move the outer portions of the strip toward each other to enclose the frame structure. Preferably, one of the second pair of arms moves before the other arm so that one end of the strip is engaged in the opposite end of the strip to secure the final corner. Additionally, one of the second pair of arms is provided with a magnet to position a magnetically attractable catch member relative to the frame for movement therewith.

Abstract: A rotary tool holder of the type in which the tool has threaded engagement with a member projecting from a rotary body and the latter affords a forwardly directed radially extending locating face which engages a complementary face of the tool to locate the latter axially in use. In order to relieve the frictional engagement at such locating surface after the tool has been used, the member which is threadedly engaged with the tool is slidably received in a recessin the body and held initially in an axially retracted position, in which the tool engages the locating face, by means of a pair of grub screws engaging inclined faces afforded by a head portion of the member within said recess. When the grub screws are slackened, the member is allowed to move outwardly of the recess by an extent sufficient to relieve the frictional contact between the tool and the locating face so as to enable the tool threadedly to be unscrewed from a threaded member.

Abstract: A sub-frame for supporting a window in a cavity wall, the sub-frame having a lintel, a sill and jambs all rigidly interconnected with the jambs inset from the ends of the lintel and sill, each of the lintel, sill and jambs having a U-section part in the form of a rectangular channel, the sides of the channels providing inner and outer abutment surfaces around the aperture in the sub-frame which receives the window. The lintel has an inner part which supports, over the sub-frame, an inner skin of bricks of the cavity wall, an outer part which supports an outer skin of bricks of the wall and an inclined part which extends across the cavity and which joins the inner and outer parts. In use, a window is received in the aperture and has a flange which overlaps and is sealed to the outer abutment surfaces of the sub-frame.

Abstract: A road cleaning device adapted to be mounted in front of a vehicle's front tires to pick up magnetically attractable road hazards such as nails, screws, tacks, bolts, miscellaneous scraps of metal and the like, the device comprising an electro-magnetic element for picking up the magnetically attractable road hazards. A support member secures the electro-magnetic element to a front part of the vehicle which is disposed in front of the front tires. A cushioning material is disposed between the electro-magnetic element and the front part of the vehicle for dampening the sound of the road hazards striking the electro-magnetic element as the road hazards are being picked up by the electro-magnetic element. The support member permits the electro-magnetic element to be horizontally adjusted to a left or right position relative to a respective front tire and to be vertically adjusted to an up or down position relative to the front part of the vehicle.

Abstract: A counterforce assembly is described for use with doors that are exposed to high pressure differentials on the two sides thereof which result in large forces acting on the doors which tend to maintain the same closed against a door jamb and make the same difficult to open. The assembly includes a counterforce panel. The panel is typically hingedly mounted and has one major side thereof covered by a pressure shield. The covered side is vented to the low pressure side of the door and maintained at the low pressure while the other major side of the panel is exposed to the high pressure side, so that the panel is exposed to the same pressure differential as is the door and a resulting net force acts on the panel.

Abstract: A training device for dental purposes is provided with elements for measuring thermal effects in dental treatment, as in the preparation of teeth. The device includes a base member upon which a tooth is to be treated. The tooth is embedded in a supporting receptacle fabricated from a synthetic resin which exhibits a thermal capacity equal or similar to that of a dentin. The receptacle is mounted on a removable work head member which is disposed on the base member. A thermal-element is apically positioned in a tooth in contact with its pulp wall. The thermal-element is associated with an amplifier for connection to a temperature indicator and/or a registering instrument. Preferably, the temperature indicator is rotatably mounted on the base member. Additionally, the work head member is rotatably mounted, such as by a ball joint removable connection.

Abstract: A box making machine includes a supply roll of a continuous web whose tension is monitored by a pivotally mounted oscillating rod which guides the web by means of a dancer roller provided at one end thereof. The web is carried through an imprinting machine which prints information on the web before it is passed through a die press which punches out portions of the web at predetermined locations on the latter. A cutter machine is provided which cuts the web into blanks suitable to be formed into boxes. The cutter machine includes a drive motor for actuating the cutter and for advancing the web from the supply roll. A box forming machine is provided for operating on the blanks and for forming the same into boxes. The box forming machine includes a drive motor for actuating the box forming machine.

Abstract: A method of treating air containing odoriferous substances includes the step of introducing ozone into the contaminated air at a first treatment zone and exposing the contaminated air to the ozone for a predetermined time period. The ozone is maintained in contact with the odoriferous substances for a sufficient time to oxidize a substantial portion of the latter. The mixture of ozone and air is then transferred to a second treatment zone where the ozone remaining in the mixture not utilized in the oxidation process is converted into stable oxygen molecules. In this manner, the treated air is substantially free of odoriferous substances as well as ozone upon the removal thereof from the second treatment zone.