Abstract: An automotive panel bracket 10 is formed from a strip having a central fold line 22 forming a double-walled stand-off 15 between a pair of base portions 11 and 12 interconnected with an automotive panel 20. A pair of confronting semi-cylindrical grooves 17 and 18 in double walled stand-off 15 form a generally cylindrical pilot hole 16 guiding a fastener 25 that extends through panel 20, through pilot hole 16 in stand-off 15, and into an automotive body 30 to which panel 20 is secured.

Abstract: Readiness for operation of laser medical instruments or of flash generators for ophthalmological instruments is indicated in such a way that the readiness signal is perceptible only to the physician and not to the patient being operated upon. There is a mini-earphone to be worn in an ear of the physician. The conventional readiness signal, if of the optical kind, is converted to an audible signal delivered to the earphone of the physician. A photodiode responsive to the optical signal is part of the conversion system, which also includes an audiogenerator and an amplifier. If the conventional readiness signal is of the audible kind, the loudspeaker is rendered inoperative and a sound signal is produced in the earphone.

Abstract: A bushing 10 for a safe door combination lock supports a spindle 20 extending through inner and outer door walls 13 and 12 separated by a space filled with insulation. A stub 15 secured in a hole 17 in the inner wall 13 by a rotational rivet 16 has an axial bore hole and a machined periphery for receiving components of the combination lock. A thin walled tube 11 extends through the bore hole in stub 15 and through the space between the inner and outer walls. An outer end of tube 11 is flared against an outer surface of outer wall 12 and an inner end of tube 11 is flared against an inner end of stub 15. Tube 11 then receives spindle 20 for the combination lock without providing a large heat conductor through the interior of the safe. Also, if tube 11 and spindle 20 are driven into the interior of the safe with a punch, stub 15 retains the tumbler wheels of the combination lock to keep the lock secure.

Abstract: A compact microscope tube which provides an image which is right-way up and right-way round, and which permits the placing of attachments such as cameras in locations which do not impede the normal movements of the person using the microscope for observation. A first concave reflecting mirror (7) is arranged behind a tube lens (11) and serves to fold an initially vertical light path downwardly at an acute angle, while a second flat mirror (8) further folds it toward the eyepiece attachment location (21) An optical system (12) between the first and second mirrors again forms an intermediate image of the object (20) in the eyepiece cups (28a and 28b).

Abstract: A pulley mount for a window balance system 10 uses a pair of spaced-apart support plates 13 and 14 each having a shoulder rivet 30 with a shaft fitting through a hole 29 in each of support plates 13 and 14. A pair of pulleys 21,23 and 22,24 are mounted on each rivet, with one pulley mounted on the rivet shoulder 32, and another pulley mounted on a flanged bushing 35 around the rivet shaft. A support plate 13 for one pair of pulleys has a hook 12 for connecting to an end of a channel 11 containing the balance system, and a support plate 14 for another pair of pulleys has a coupler 17 connected to a balance spring 15.

Abstract: A vapor-sealed insulation system 10 for a fire resistant safe with a steel outer body 11 and door cover 12 uses several resin molds 15-17 that receive and hold the safe's insulation material and are shaped to fit within door 12 and body 11 for lining the safe's interior. The molds 15-17 not only preform the insulation but seal in its moisture. When the insulation molds are installed in the safe, their inner walls form interior safe surfaces.

Abstract: A spreader 10, cooperating with a dump body 11 having a conventional tailgate 20, includes a conveyor 15 extending through an opening 12 in the lower region of tailgate 20 to rest on bottom 13 of body 11 and extend aft of tailgate 20. A hopper 30 underneath a rear end of conveyor 15 receives rearward flowing material that it guides downward to a spinner 50 arranged below hopper 30. The conveyor 15, hopper 30, and spinner 50 are all removable from tailgate 20 and dump body 11 so that the truck can be used conventionally as a dump truck. When used as a spreader 10 with tailgate 20 closed, conveyor 15 conveys material from body 11 aft through the opening in tailgate 20 to spinner 50 at the rear end of conveyor 15. By tilting dump body 11 with tailgate 20 closed, a partial load can be shifted aft against tailgate 20 where it overlies conveyor 15 and can then be conveyed to spinner 50 after dump body 11 is leveled.

Abstract: A window spring system for jamb liners 10 having a guide rails 11 formed in sash run regions 12 includes a spring 40, spring cover 60, spring anchorage 30, and sash platform 50 assembled within spring cover 60 that encloses spring 40 and has a closed back side 61 formed with opposite guide edges 62 shaped to slide into an interlock with guide rails 11 in jamb liner 10. An upper region 66 of the back side of spring cover 60 is cut away to receive spring anchorage 30, which is connected to an upper region of spring 40 and engages spring cover 60 and jamb liner 10 and preferably interlocks with jamb liner guide rails 11. A lower region 67 of the back side of spring cover 60 is cut away to receive sash platform 50 connected to a lower region of spring 40 and also preferably interlocking with guide rails 11 of jamb liner 10.

Abstract: My safe door live bolt assembly 10 is operated by a handle spindle 38 and uses a pair of identical castings 15 that each include a pair of live bolts 16 interconnected by a bracket 17. Each casting 15 has a single connecting rod 30 extending from bracket 17, and the inner ends of connecting rods 30 connect to a T-bar 35 that overlies the inward facing sides of connecting rods 30 and is secured to handle spindle 38 for operating live bolts 16. Slide brackets 12 secured to inner safe wall 13 guide live bolts 16 in their sliding motion and afford bracing for live bolt connecting brackets 17. Although each bracket 17 has a lock projection 20, only one of these interacts with a combination lock 25.

Abstract: A disk attrition device 10 or 50 for pulping or refining slurried material has a centrifugal rotor pump that reverses the flow of material through the attrition zone 13 between rotor and stator working bars. Rotor 12 has centrifugal pump vanes 20 axially near attrition zone 13 and disposed around a peripheral pumping region 17, and rotor 12 has a hollow interior 30 extending from the inner periphery of the attrition zone to the pumping region. Pump vanes 20 provide sufficient centrifugal pumping force so that slurried material enters the outer periphery of the attrition zone, passes radially inward through the attrition zone against the outward pumping force of the working bars, and flows through the hollow rotor interior to the pumping region, where it is pumped radially outward.

Abstract: A night driving dazzle protection system uses anti-dazzle screening material transmitting less than 40% of incident light and arranged on screened portions of right and left eyeglass regions 30 and 20 in front of a driver's eyes. As viewed by the driver, the eyeglass region 20 in the view of the driver's left eye is screened between about 7:30 o'clock and about 9:00 o'clock, and the corresponding eyeglass region 30 in the view of the driver's right eye is unscreened between about 7:30 o'clock and about 9:00 o'clock. Preferably, right and left eyeglass regions 30 and 20 between about 3:00 o'clock and about 4:30 o'clock are screened for the driver's right eye and unscreened for the driver's left eye. Also, upper portions of each of the eyeglass regions are preferably screened from about 9:00 o'clock to about 3:00 o'clock.

Abstract: A hydrokinetic amplifier 10 that combines a liquid and vapor to produce an amplified liquid output pressure is used for compressing or liquifying gas by admitting gas to be compressed into a region where the liquid and vapor are in contact and the vapor is accelerating the liquid. The admitted gas is allowed to merge with the liquid and vapor and become compressed or liquified within the pressurized liquid output. A mixture of liquid and compressed gas can be used directly for purposes such as cleaning, or the liquid and compressed or liquified gas phases can be separated in the output so that either one or both can be used.

Abstract: A coupler connects end regions of different sizes of coiled tension springs 30 and 40 to components of block and tackle window balance systems 10. Each coupler 15, 20, or 25 has a snug fit within terminal coils 41 of the strongest spring 40 having the smallest inside diameter, and weaker spring 30 with a larger inside diameter has its terminal coils 31 necked down to fit the coupler. The coupler has a notch or opening with an abrupt edge 18, 22, or 28 axially spaced from an end of the coupler so that the notch is at least twice as long as the largest wire diameter used in the coil springs. At least one of the terminal coils of each spring is indented into the notch or opening in the coupler to a depth of more than one-half the wire diameter so that the indented coil interlocks with edge 18, 22, or 28 and keeps the spring from slipping off the coupler.

Abstract: A zoom lens mount in which all adjustments for variation of focal length and for focusing at all focal lengths as well as marco-focusing can be accomplished by manipulation of a single external operating ring. Movements are smooth from one position to another, eliminating or reducing the danger of jamming which has occurred with some prior constructions. Focal length is adjusted by axial displacement of the operating ring, and focusing by rotation of the operating ring. In the wide-angle position, marco-focusing can also be accomplished with the same operating ring.

Abstract: A long focal length or telephoto lens for photographic purposes has an optical element with a high coefficient of thermal expansion, and special features to impede transmission of heat to this element when the housing of the lens becomes heated by rays of the sun. A thermal insulation bridge, preferably of ceramic material, is interposed in the heat flow path from the rear part of the housing to the lens tube which contains the sensitive optical element. Moreover, this lens tube is spaced inwardly a substantial distance from the surrounding front part of the housing, to provide a substantial air space between tube and housing, with air inlet and outlet openings for circulation of air. The outer surface of the lens tube has a heat reflective coating, to reflect rather than absorb heat radiated inwardly from the surrounding housing when the housing becomes heated by rays of the sun.

Abstract: A purging and recharging system improves the repeating of detonations from a detonation device 10 having a detonation chamber 20 separated from an ignition chamber 25 by a detonation plate 22 having an opening 23 through which a flame jet can pass from ignition chamber 25 to detonation chamber 20. A differential piston 30 driven by a detonation in a differential cylinder 31, 32 around detonation chamber 20 affords a fluid passageway between differential piston 30 and detonation chamber 20. On a power stroke, differential piston 30 compresses recharging air and draws in cooling and exhaust purging air to surround detonation chamber 20. On a return stroke, differential piston 30 forces cooling and purging air into detonation chamber 20 and then admits compressed recharging air into detonation chamber 20.

Abstract: A pressure regulating spool valve 10 having a body 25 within which a spool 20 is moved in a dither motion by a proportional solenoid 15 has a spool land 40 separating high and low pressure fluids and spanning and cooperating with a regulated port recess 51 in body 25 for variably opening high and low pressure windows 54 and 55. With opposite edges 52 and 53 of recess 51 spaced apart by a distance X, the opposite edges 42 and 43 of spool land 40 spaced apart by a distance Y, and the dither motion imposed on spool 20 by solenoid 15 having an axial excursion A, the relationship X.ltoreq.Y.ltoreq.(X+A) applies. This makes the alternating overlap of spool land 40 with recess edges 52 and 53 equal to or less than the dither excursion so that high and low pressure windows 54 and 55 of the regulated port 50 are opened for a predetermined portion of each half cycle of the dither motion.

Abstract: A hollow frame, of the general shape of the letter D, has a straight side adapted to rest on a horizontal supporting surface such as the ground or a floor, this straight side having sufficient dimensions to provide stability to hold the rest of the frame in an upright position in a vertical plane. A plastic trash bag has its open end inserted through the hollow frame and its margins folded back over the outer surfaces of the frame, so that the frame holds the mouth of the bag open, in position to receive trash inserted by an approximately horizontal motion. As the bag becomes more full, the frame may be lifted off the supporting surface, using convenient hand holes provided in the frame, and the partially filled bag may be placed upright, in which position the frame remains at the top of the bag and continues to hold the mouth of the bag open to receive more input.