61 results about "Head First" patented technology

A bracket and quick connect/disconnect battery cable connector are disclosed to facilitate connection of a battery cable to a vehicle batter. The bracket is adapted to be connected to a battery to be in electrical communication with a terminal of the battery. The bracket comprises a head having a first surface, a second surface opposite the first surface, and two or more spaced apart lock members extending from the bracket head first surface. The lock members are generally C-shaped forming channels defined by a curved side surface and an upper surface. The connector comprises a body having a surface, a stem extending from the body surface and two or more flanges extending radially from the stem. The flanges have an upper surface spaced from the connector body surface. One of the flange upper surface and the channel upper surface is sloped such that, as the connector is rotated relative to the channel, the locking member radially extending surface will be sandwiched between the flange upper surface and the connector body surface. In a preferred embodiment, the flange upper surface is sloped, such that the flange defines a wedge.

The invention belongs to the construction method and structure of two-layer preliminary supports for preventing a geological disaster of a large-section weak surrounding rock tunnel. The construction method based on a three-step tunnel construction method comprises the first step of constructing advance supports of the tunnel, the second step of constructing top-heading first-layer preliminary supports of top headings, the third step of constructing center-heading first-layer supports and center-heading second-layer preliminary supports of center headings, the fourth step of constructing top-heading second-layer preliminary supports of the top headings, the fifth step of constructing bottom-heading first-layer preliminary supports and bottom-heading second-layer preliminary supports of bottom headings and the sixth step of constructing inverted arches, so supporting structures of closed rings of steel arches in the preliminary supports on all layers are formed. According to the construction method and structure, the geological disaster of the large-section weak surrounding rock tunnel can be effectively prevented, the safety of tunnel construction and operation is guaranteed, and economic loss caused by the geological disaster is reduced; besides, the construction method and structure have the advantages of being low in construction resource amount and cost, construction is easy, the construction speed is high, safety risks are small, and construction quality is high.

The invention discloses an aperture measuring method based on non-contacting type sensor combination, is suitable for measuring the size of the inner diameter of a workpiece, and relates to the geometric sense measuring field. The method comprises the following steps: first, installing a main shaft of a double-sensor measuring head on a mechanism with the horizontal moving function so as to form a complete set of measuring system which is arranged in a workpiece to be measured; at measuring time, measuring optical axes of two sensors on the double-sensor measuring head being enabled to be on the same straight line; the double-sensor measuring head first rotating on a ZOY face, and then horizontally moving on an XOY face, finally the diameter of an inner hole of the workpiece to be measured is obtained; or, the double-sensor measuring head sequentially rotates on the ZOY face and the XOY face to obtain the diameter of the inner hole of the workpiece to be measured. When the method is used for measuring the diameter of the inner hole of the workpiece to be measured, only two procedures need operating theoretically, so that measuring efficiency is greatly improved, and a large number of measuring labor hours are saved. Moreover, the non-contacting measuring head is arranged on a lathe, a motion execution mechanism of the lathe is used for enabling the measuring head to rotate or move horizontally, so that on-machine accurate measuring can be achieved.

The invention relates to a wave-aberration indoor detection method of a large-caliber photoelectric detection system at different elevations. An objective target plate and illumination system, a small-caliber collimating optical system with a variable diaphragm, a first turning beam-splitting prism, a second turning beam-splitting prism, a measuring head third turning beam-splitting prism, a measuring head first beam-splitting prism, a second beam-splitting prism, a first photoelectric auto-collimator, a third beam-splitting prism and a second photoelectric auto-collimator are successively arranged on a detection optical path. According to the technical scheme of the invention, the wave-aberration indoor detection method of the large-caliber photoelectric detection system at different elevations is mainly used for detecting the wave aberration of the large-caliber photoelectric detection system at different elevations. In this way, the imaging quality at different elevations and the stability quantitative assessment thereof are realized.

An end portion of a head has a recess having an inner shape corresponding to a dome shape of a well when the well is in an expanded state. The radius of curvature of the recess is larger than the radius of curvature of the dome shape of the well. Moreover, the depth of the recess is smaller than the height of the dome shape of the well. Therefore, the head first contacts the apex of the well, and the contact area gradually expands toward the outer periphery. At this time, a gap is generated between the head and the cartridge around the well. Thus, the air between the head and the well is expelled from around the well as the head is pressed against the well.

A monitor metal rusts away the optical fiber transmitter, its constitution includes: The detecting head is in waits on the monitor metal material by the first optical fiber to twine the N circle constitution; Reference is in one with treats on the monitor metal structure material configuration and the radius same anti-corrosive material by the second optical fiber twines the N circle constitution; States a detecting head first optical fiber end and refers to the head a second optical fiber end to tie the ratio after the minute is 1: 1 first optical fiber coupler coupling and forms the first port and the second port, states the first optical fiber and the second optical fiber another end ties the ratio after the minute is 1: 1 second optical fiber coupler coupling and forms the third port and the fourth port. This invention has the structure simply, the manufacture is easy, may obtain the high sensitivity survey; May use certain optical fiber paths of rays to constitute the multi- viewpoints the distributional supervisory system.

The clutch mechanism of the electromagnetic lock consists of an electromagnet assembly, a push piece connected in sequence, a push piece return spring, a movable piece, a transmission piece, a transmission piece return spring, a square bar linkage block, and a square bar. A sliding shaft and a stopper are arranged on the top end surface of the electromagnet assembly, and the stopper is fixedly connected with the sliding shaft; the movable piece is slidably sleeved on the sliding shaft; the head of the transmission part is provided with a first blind hole cavity; the pushing part The protruding part of the main body passes through the central hole of the movable piece and fits into the first blind hole cavity of the transmission part, and the square rod linkage block is movably connected with the square rod, which facilitates the replacement and folding of the square rod. The clutch mechanism is mainly used in a dual-purpose electromagnetic lock that can be opened and closed mechanically and controlled by an electric circuit.

An apparatus for exercise, body building and rehabilitation includes a main body to be grasped by a user or bound around a proper part of a user's body. A fixing member is secured with the main body for fixing one end of an elastic rope, loop-shaped and provided with a first and a second end portion in proper proportion. The first end portion is formed with an open hole extending downward and contracting gradually to form a longer open hole at the second end portion. The elastic rope has one end head first put in the larger open hole of the first end portion and then the elastic rope is moved downward to force its end head to be stuck in the narrower open hole of the second end portion of the fixing member not to slip off, facilitating a user to carry out exercise, body building or rehabilitation.

An assembly designed to encourage fish to enter a Coanda effect fish pumping system head first to allow delicing through the pump. The assembly includes a funnel shaped tube made of spaced bars and a water distribution system that provides a current that fish will swim toward. Once within the funnel shaped tube, wall spacing allows the current to dissipate where a suction current of the pump further transfers the fish. The current changes within the Coanda effect pump provide delicing of the fish by orientating the fish in a forward direction as the fish pass through the pump.

The application discloses a bellows welding device, which includes a base, a first clamp, a second clamp, a welding torch bracket and a welding torch. The first clamp is fixedly installed on the base, and the second clamp is movably arranged on the base. The second clamp can be The first clamp moves back and forth; the welding torch support is arranged on the base, and is located between the first clamp and the second clamp. The welding torch support includes an annular support and a welding torch seat that can move circumferentially on the inner wall of the annular support; the welding torch seat is provided with a telescopic mechanism, and the welding torch Set in telescopic mechanism. Therefore, by first aligning and fixing the corrugated pipe and the connecting head, and then performing circumferential welding on the corrugated pipe and the connecting head through a welding torch capable of moving in the circumferential direction, there is no need to rotate the corrugated pipe and the connecting head, and the welding quality is improved.

A rapid glass detection platform with double detection heads vertically and horizontally, including a frame, a detection mechanism is installed on the frame, a conveying mechanism for conveying glass is installed under the detection mechanism, and a detection mechanism beam and a detection mechanism are installed on the detection mechanism The side beam, the first horizontal detection head and the first vertical detection head are movably installed on the detection mechanism, and the second horizontal detection head is slidably installed on the detection mechanism beam through a horizontal sliding device. By measuring the first horizontal detection head and the second The distance between the horizontal detection heads is used to calculate the horizontal size of the glass. A second vertical detection head is slidably installed on the side beam of the detection mechanism through a vertical sliding device, and the longitudinal direction of the glass is calculated by measuring the distance between the first vertical detection head and the second vertical detection head. Size, this method solves the problem that the glass cannot be close to the side wheel in the traditional technology. When the glass is not in place or skewed, there will be errors in the measurement, so as to achieve accurate data and stable measurement accuracy.

The invention discloses a low-overflow dam equal-water head step-by-step energy dissipation structure. The structure comprises an overflow dam; the overflow dam is provided with a first-grade overflow dam absorption basin, a second-grade overflow dam absorption basin and a third-grade overflow dam absorption basin; the first-grade overflow dam absorption basin is connected with the dam top of the overflow dam through an equal-water head first-grade overflow dam vertical wall surface; the bottom of the first-grade overflow dam absorption basin is connected with an equal-water head first-grade drainage energy dissipation pipe; the second-grade overflow dam absorption basin is connected with a first-grade overflow dam absorption basin streamline sill through an equal-water head second-grade overflow dam vertical wall surface; and the bottom of the first-grade overflow dam absorption basin and the bottom of the second-grade overflow dam absorption basin are connected with an equal-water head second-grade drainage energy dissipation pipe. Compared with the prior art, the structure adopts such designs as equal-water head energy dissipation pipe graded drainage energy dissipation, equal-water head graded vertical overflow, flooding jet absorption basin energy dissipation, advanced overflow and reservoir capacity increment, and is prominent in cavitation resisting effect of overflow surfaces, better in energy dissipation effect, simple in structure, lower in maintenance cost and larger in popularization space.

The present embodiment 10 provides a safety device for use with rodeo type bucking chutes as a means of reducing serious injuries to the participant, (which are common to the sport of bull riding and bronc riding) while preparing to mount livestock during exhibitions and competitions. The device comprises of a pad 42 filled with shock absorbing material 46 and covered with an encasement 42 made of vinyl, leather or other material strong enough to withstand substantial impact by individuals and/or livestock. The embodiment 10 is designed to fit over the top of the chute gate slider frame 18, extending slightly below the attachment area and attached at both ends of the chute frame 18. Attachment is accomplished with the use of nylon straps 30 (or other suitable material) to hold the embodiment 10 in place. Velcro strips 38 may also be used to attach the embodiment 10 to the chute frame 18. The embodiment 10 as shown 10 FIGS. 1,2 and 3 when properly mounted to the bucking chute frame 18 front and back, will greatly reduce the possibility of injury caused by the animal lunging forward and throwing the participant head first into the steel bars on the chute gate frame. It will also prevent injury when animals rare over backwards, pining the participant between the animal and the top of the chute gate.

A rear view mirror has a single mirror surface. The single mirror surface heads first and second planar reflective portions having an included angle therebetween that is less than 180°. In some cases the mirror is elongated in a direction that is normally horizontal when the mirror is mounted for use and the first and second portions many intersect to define a line that is vertical when the mirror is mounted for use. For some applications an included angle of approximately 160° is preferred. In some cases the first portion is mounted during normal use with the plane thereof substantially normal to the major axis of the vehicle on which the mirror is mounted. For some embodiments, the second portion is to the right of the first portion during normal use. The first portion may be elongated and many more specifically be elongated in a direction that is horizontal during normal use. Similarly, the second portion may be elongated and this elongation may be in a direction that is horizontal during normal use.

The invention discloses a shower head with a shower wash heating function, which comprises a shower head body, the body is provided with an injection hole for injecting shower wash, a sealing cover which is rotatably connected with the body is arranged in the injection hole, a torsional spring is arranged between the sealing cover and the body and tightly presses the sealing cover on the body, and an impeller is arranged in the body. When in use, the shower head first discharges hot water for shower, shower wash is injected into the injection hole when needed, consequently, the shower wash can rush out along with water flow, and cold cannot be felt during the bath; because the shower wash is low in temperature and poor in fluidity when just injected into the shower head, when water flows, the impeller can rotate to agitate the shower wash in the shower head, so that the temperature rise of the shower wash becomes quicker and the fluidity of the shower wash becomes better, and thereby the shower wash can be more quickly ejected out from the shower head.

The present invention discloses a method for making the golf club head which simultaneously present different lusters, and the method comprises a preparing procedure, a shielding procedure, a sand spraying procedure and an eliminating procedure, etc., the shielding material is filled in the groove unit of the club head first, the preparing procedure is preparing a club head and molding one groove unit at the club head, the shielding procedure is filling the shielding material in the groove unit, the sand spraying procedure is processing sand spraying to the club head to cause that the surface is different from the original luster, the eliminating procedure is eliminating the shielding material in the groove unit of the club head to cause that the luster at the groove unit of the club head is different from the surface of other positions, the method can also increase the appearance and tactile sensation of the golf club head and effectively compact the manufacturing process, to reduce the time of manufacturing process and save manufacturing cost and can effectively increase the good rate.

The invention provides a thick plate head first-shearing positioning device and control method, and relates to the technical field of automatic shearing control on thick plates. The device comprises head cutting shears, an output roller bed, a length measuring roller, an input roller bed, light curtains and a to-be-sheared steel plate; the to-be-sheared steel plate is placed on the input roller bed; the head cutting shears are mounted at the headmost end of the input roller bed; the length measuring roller is mounted on the head cutting shears; and the light curtains are mounted on a head cutting shear rack, are used in pairs and are arranged in a face-to-face manner. According to the device and the control method, through combined control by the aid of the light curtains and the originallength measuring roller of the head cutting shears, high-precision positioning of first shearing of the head of the thick plate is realized, the serious defects that the hysteresis exists during length measurement by the aid of the single length measuring roller of the head cutting shears and positioning control and the headmost end of the steel plate cannot be positioned effectively are overcomeeffectively, and the positioning precision of the head of the thick plate is improved remarkably.

The invention discloses a shower head, which comprises a shower head body, the body is provided with an injection hole for injecting shower wash, a sealing cover which is rotatably connected with the body is arranged in the injection hole, and a torsional spring is arranged between the sealing cover and the body and tightly presses the sealing cover on the body. When in use, the shower head first discharges hot water for shower, shower wash is injected into the injection hole when needed, consequently, the shower wash can rush out along with water flow, and cold cannot be felt during the bath.